Ollie's Ice Cream is such a great little spot! It's a quick grab-and-go shop with tons of flavor options and a huge selection of toppings -- something for everyone. The service is super quick and friendly, which makes it perfect for a spontaneous ice cream stop. We tried the Twister -- Twix, caramel, and vanilla ice cream mixed with brownies and nuts -- and it was absolutely delicious. Creamy, crunchy, sweet, and perfectly balanced. You can really taste how fresh everything is. Whether you're craving something classic or want to load up on toppings, Ollie's is the place to go. Great local gem and a must-try if you're in DeKalb! read more

Ollie's Frozen Custard - Ice Cream & Frozen Yogurt Near Me - Sycamore, Illinois

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It's cute outdoor spot next to Hyvee and Northwestern Medicine Kishwaukee Hospital. The workers their were fast and getting everyone's orders and probably the best custard shop in the area. read more

Ollie's Frozen Custard - Smores - Ice Cream & Frozen Yogurt Near Me - Sycamore, Illinois

Good custard, friendly folks and a down home vibe. Ollie's is a local ice cream custard shop outside the main road, nestled between buildings, with a retro atmosphere and great custard. The prices are reasonable and the staff friendly and knowledgeable on the menu. There is a drive through (closed at the time of review). The lines can get long at times, but nothing beats a sweet custard when it's hot out. They have mixed treats like the blizzard style blends, sundaes and classic shakes. They offer pint offering to go too. Check it out. read more

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Our favorite custard in the Dekalb/Sycamore area. We ordered blueberry, hot fudge and strawberry Sundays. Large selection of custard, slushies, ice cream and deserts. Thank You read more

Ollie's Frozen Custard - Sundays - Ice Cream & Frozen Yogurt Near Me - Sycamore, Illinois

Lots of options. Everything is pretty cheap. The line moved quickly, and it was actually kind of good for us that there was a line so that we had time to take in the menu boards. I got a malt with the daily custard flavour, Irish Cream Cake. I just can't resist malt, but if I had to do it over I would order a plain shake since I think the malt may have covered up the subtleties of the Irish cream flavour. Nonetheless it was very tasty and an interesting flavour. The shake was the right consistency for me, creamy but not heavy or too thick to easily drink. The group I went with was mostly out-of-towners at NIU for a conference, and the locals were all recommending this place to us. It was good stuff, and with all the options I only wish I had more chances to come back. read more

Ollie's Frozen Custard - Irish Cream Cake Malt - Ice Cream & Frozen Yogurt Near Me - Sycamore, Illinois

There is generally 'always' a line but that's because the custard is so good! They even have non-dairy options like the frozen dole whip! Tried the flavor of the day which was thin mint. We got one scoop on a cone and ai made mine a hot fudge Sunday (just fyi... whipped cream is an add-on of $1) Highly recommend if you're in the area or like us took a little drive to get some custard on a nice evening! read more

Ollie's Frozen Custard - Weekend flavor! Black Raspberry! - Ice Cream & Frozen Yogurt Near Me - Sycamore, Illinois

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Still rocking in 2024. We stopped in after a visit to Lowes after dinner. This place was packed. First off, seating is available: In front of the takeout windows Behind the business WAY behind the business in the grass at the south end of the parking lot. Lots of seating. You order at the west window, and pick up at the east window. While you are in line on the west side, take in the menu boards, so you can order quickly. Hand over your money, and then wait at the east window. I had a Raspberry sundae, which was really nice. I went with a Junior size, so I don't have to do 10 miles tomorrow. My wife had the vanilla bourbon ice cream, with carmel. You could actually taste the bourbon in the ice cream, and lots of people were ordering it. Service was solid - around 4 minutes from order to eating. When we left, the line was twice as long. This place is popular for a reason. It's GOOD. read more

Ollie's Frozen Custard - Vanilla Bourbon Ice Cream with Carmel - YUM! - Ice Cream & Frozen Yogurt Near Me - Sycamore, Illinois

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Got a Parfait. It's extremely sweet and I just need it!!! Will go there to try the custard or sundae next time. read more

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This story is too important to not be told. PART 1 - What Happened: On 8/16/25, my husband went to Ollie's to get us some custard. My husband is a black man. He got there before they opened, he was the second person in line, and the only person of color. When he got to the window to place his order, he heard a boy employee quietly say to the girl, "You should refuse him service." Which they both laughed about. When he started placing his order, the boy immediately stated they didn't have any peaches (part of our order). Both my husband and the girl repeatedly asked the boy if he could go check, but he just kept saying, "No. I'm pretty sure we don't have any." My husband was shocked and disgusted by how he was being treated, so he got out of line and called me to tell me what happened. We both agreed he should just leave, because we weren't going to buy anything after that. But I was FURIOUS. So I (a white woman), called Ollie's and asked if they have peaches. "Absolutely! We have peaches!" I was told by the male employee who answered the phone. So, I confronted him and asked if he had just told a man at the window that they did NOT have any peaches, and if he told his co-worker that she should refuse him service. He never denied it, he just said, "Umm...I don't know." And, "That's odd..." And, "That's interesting..." So, I explained how offensive that behavior is, and when I asked if he was the only male employee that day (in case it wasn't him), he hung up on me. Everything he said and did showed me guilt. So, I called back, told the whole story in a voicemail for the owners, and left my name & number for someone to get back to me. That was Saturday (8/16/25). I decided to wait until Tuesday (8/19/25) before I called again. PART 2 - The Follow-Up: I hadn't heard from anybody, so I called Ollie's again on Tuesday (8/19/25) and the on-duty manager said he didn't deal with stuff like this and he gave me the owners' phone numbers. The owners are a husband & wife, and I ended up speaking to the husband. He explained that they do normally listen to the voicemails, but they had not yet listened to the ones from the weekend. To be clear - I told the owner from the beginning that we are NOT looking for any sort of compensation, which is typically assumed when someone accuses a business of discrimination. We don't want money, or free ice cream, or anything. All we want is for Ollie's to make sure that no person of color has to be subjected to this kind of disgusting treatment at their window again. PART 3 - The Owners: So I told Mr. Owner the whole story again. To be fair, he did apologize, he said they don't tolerate any form of racism, and they have a zero-tolerance policy which is part of the "contract of employment." All of that sounds great, but he also gave me every excuse and explanation he could think of for why we could be wrong. Maybe my husband misheard. (He didn't.) Maybe it was a joke. (Not funny.) Maybe it was an accident. (Nothing about it was an accident.) He said they have cameras in the store that also pick up audio, and they were going to investigate to find out what happened. I was glad, and I thanked him, and asked that he get back to me to let me know what they find. He said he couldn't do that because of privacy, but I should just trust that they'll handle it appropriately. Um...NO. I've been around long enough to know that when businesses police themselves, it never works. PART 4 - The Outcome: On 8/25/25, Mr. Owner called me and said they had completed their investigation, and they concluded the following: - They don't believe the situation was race-based. - They believe the employee said, "You should cancel his order." Not, "You should refuse him service." - The employee has been reprimanded. I explained that I don't know what else it could've been about, other than race, because nothing happened that would give them reason to refuse my husband's order. His answer was; the reason his employee wanted to cancel the order was because my husband wanted the large size Arctic Blasts, and those are harder to make. WHAT?!? It's insulting that we're actually expected to believe that. When I asked if the problem employee still works there, he said he couldn't tell me because of privacy. All he would say is, "My staff has changed." I know what that implies, but my husband knows what happened at that window that day because he was there. The owners were not. You don't believe us? We don't believe you. The bottom line is that Ollie's did, in effect, refuse my husband service that day, by lying and saying they didn't have what he wanted. I guarantee the owners have never been denied service because of the color of their skin, but anyone who has, knows how it feels. It messes you up for a long time, and that's what it's done to my husband. So, while we appreciate the apology, none of the answers we got make any sense, and we will NEVER go back. read more

Good custard but awful customer service. It was my first time coming so I had a few questions and the employee, Jeremiah, was extremely rude and then began to turn around and tell his coworkers how stupid my questions were and mocked me. Ended up not getting anything. Very disappointed because I was excited to try this place. read more

Best ice cream place in the Dekalb Area! They have something for everyone! On top of their delicious ice cream, they are always fast and friendly! If you love Whip Cream, they give you a generous amount! Would highly recommend this place to anyone and everyone. read more

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A great local place to go if you're ever in the area of dekalb. The outside design reminds me of the 90's and they try their best to replicate that drive through restaurant scenery with outdoor seating. If you can't tell by the lines, everyone has Ollie's as their go-to desserts here. I got the raspberry dole whip and it tasted very natural and not artificial at all. Their flavors of the month and very unique and it's definitely a place that I would consider driving 50+ miles for. It's a great staple for an afternoon dessert. read more

Ollie's Frozen Custard - Raspberry dole whip - Ice Cream & Frozen Yogurt Near Me - Sycamore, Illinois

Recommended by my cousin and glad I made the stop. My boyfriend and I split a specialty sundae and it was delicious. Definitely large enough for 2 to share. The custard was creamy and the toppings were fresh. The cookie dough pieces were excellent. Decent amount of tables out front to enjoy a tasty treat! read more

Oh my goodness, I didn't realize I had not written a review for Ollie's yet! They are one of my "trinity" of favorite custard and ice cream places. When I go to Jonomac orchard, I make sure to swing by Ollie's on the way home. The custard is awesome. The people are nice. It's a local business treasure. Get over here and give it a try whenever you are in the area. Last time I had a banana split with hot fudge, three scoops of custard, and It was so good I ate the whole thing and wanted more. I even bought a T-shirt! :) read more

We love Ollies! Always been a favorite for years! My boyfriend and I recently treated ourselves to their flavors of the day. So glad they opened back up since Covid started. read more

Ollie's Frozen Custard - Ice Cream & Frozen Yogurt Near Me - Sycamore, Illinois

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My wife is obsessed with Ollie's. She grew up with it. When we first visited her parents in Dekalb, going here was nostalgic for her. Although she insisted on arguing with me about whether it's called ice cream or custard. I still think that frozen custard is a type of ice cream. 7 years later and we still debate this. Anyway, it's frozen custard/ice cream. Delicious. They rotate flavors during the month. I have not had the opportunity to try specific flavors, but I did make my own sundae, which was just as delicious. Creamy, fatty, deliciousness. Customer service was friendly but sort of on the slow side. Not much lighting for those eating there at night. read more

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Just arrived here from Kansas City-first stop Ollie's. Parfait and a Boston Shake - the shake of your flavor choice with a sundae of your flavor choice on top. Mine was hot fudge on hot fudge. Probably a zillion calories but when you come this far there's no point in not going all in. read more

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Love Ollie's! I was a bit disappointed that the two flavors I was looking for in pints or quarts weren't available but I was happy with the flavor I got and will be back. read more

Yummy, creamy delicious. Caramel cashew is the best. Fast service even if the line is long.

Cute place with delicious custard! Line is usually pretty long tho, drive thru is not typically open, and they only have a flavor a day unless you want to buy a pint. read more

Don't let a long line turn you away! Always stop here with family when visiting. Great homemade custard while I have found the prepacked pints lacking in toppings, the sundaes are no joke. Fresh fruit toppings are great. That is my favorite. It isn't gross syrupy toppings or like others that are fruit in nasty cellulose gum. You can tell it's fresh fruits that sit overnight in sugar. That makes all the difference! I work in ice cream and wish we could make toppings but it's corporate so... A-plus stuff at Ollies. They are seasonal so we make sure to come every trip from Ohio. It's a must have. read more

Ollie's Frozen Custard - Banana split with strawberry, blueberry and raspberry. They give you crushed nuts and load it with whipped cream! - Ice Cream & Frozen Yogurt Near Me - Sycamore, Illinois

Hands down the best treat in DeKalb County. The custard is made fresh on site. There are dozens of specialties to choose from, it is really hard to decide which one to order. All the ingredients are fresh and the servings are a generous size. Ollie's is quite famous in this area. We've been going there since it first opened in a previous location. We bring all of our out of town friends to Ollie's and they are always amazed at the excellent quality and extensive variety of custard. read more

Great Ice Cream! Great people working. Always busy. But they also seems to make it go fast and the experience good!

Delish! Husband always gets at least two pints to take home -definitely get the Georgia peach if they aren't already sold out of it. I get a small dole whip - pineapple or mango. Don't let the line discourage you, it's worth it. read more

It was recommended that we stop at Ollie's when we visited NIU with our daughter. So we did. Somehow, my husband went to school there and never tried it, but many of my friends who went there recommended it. Let me tell you, the custard was tasty. I got a turtle, and while that was okay... I think I would have been better to not get toppings, or do what my daughter did and just get some fruit... there seemed to be too much going on with the turtle sundae, but it was good. We'll come back for the custard alone, don't need the toppings 'cuz the cool treat is great on it's own! read more

Been to Ollie's a couple times now. Every day, there is a fresh, featured flavor. My personal favs are blueberry cheesecake and mocha chip. Also tried their ice cream pies, which are delicious, pretty sweet tho. read more

Ollie's Frozen Custard - turtle pie - Ice Cream & Frozen Yogurt Near Me - Sycamore, Illinois

Our first time here, I am not to keen on the entry process to get served but it works besides that the frozen custard is amazing!!! Can't wait to come back! read more

Summer time or anytime favorite frozen treat! The Hedge, Black Raspberry Saturday or Turtle Sundae! Num read more

Pretty good. Love their dole whip. Very fast service considering the lines are around the building on any given weeknight.

It is so good I love it so much and I'm happy that I can live close be thank you .Thx

Best custard rain or shine! I like getting the sundae and always add my favorites banana and pineapple with whip cream

Although this is good custard the service by employees were terrible. One person ordered ice cream with coconut and instead got pecans. the order taker was also very neutral and did not care to serve customers in a nice way even if he was faking his enthusiasm. then i finally got the ice cream that was ordered and they forgot a straw that come with the drink. when i went up to ask i was ignored by employees at first and then i finally got the chance to ask i asked for "2 straws and a couple of lids" i was then handed one straw and had to ask for a second one while the worker responds okay in a rude tone because she has to help me out with straws and lids but. she never gave the lids and walked away from me so i left. service has never been this bad at ollie's even while they were busy. i am also someone who works in good service so its not hard to treat others with basic respect and kindness read more

There is no place better!! Large servings and always tasty! Wish they were open year round!!

One of the best places to not only get ice cream but also to hang out in the wilderness. The wife loves it. Our favorite is the Black Forest but add brownie bites!!! read more

If you are not from the area and find yourself in this area, you have to go to Ollie's. Best local frozen custard place. Don't event think about going somewhere else..... they don't even compare. They always have chocolate, vanilla, and then a flavor of the day. They have a very large menu of frozen treats you can try and I encourage you to get creative and come up with your own creation. ( Sometimes they even have competitions or surveys that you can fill out with ideas of new flavors or Sundaes and such to feature). Tip- their regular and larger serving sizes are quite generous. It is not on the menu but you can ask for a Jr size of most items for a dollar or two cheaper and its usually about the size of a small or medium. Just right size for me usually. If I get a regular I end up sharing with someone. Enjoy your frozen treat outside and don't line up in front of the window, line up around the side. And as the picture shows, the lines are long but well worth the wait. =) read more

Ollie's Frozen Custard - Ice Cream & Frozen Yogurt Near Me - Sycamore, Illinois

I no longer live in Dekalb, and this is the place that I miss the most. They carry chocolate and vanilla every day, with a special flavor of the day that changes. It was convenient, because they would have a calender forecasting the flavors, and you could even buy the pints to take home and enjoy later. One of my favorite things about Ollie's, aside from "OMG ITS SO AMAZING SOMETIMES THERE'S A LINE AROUND THE STORE!!!!" (still so worth it), is that they let you customize what you order, and you only pay for what you want. If, like me, you're a vanilla custard with oreos and whipped cream kind of girl, you pay way less than my friend, a vanilla, with oreos, raspberries, nuts, whipped cream, and the odd kitchen appliance. Which I appreciate - I pay for what I get, and it's always amazing! They have fun, custom flavor combos (I can't remember what the combos were, but I remember one of them was the blackbird, one was the huskie... and it was always fun to see the new ones. Sometimes they would run contests for customers to suggest a new combo. I miss Ollie's. :-/ read more

I REALLY wanted to like Ollie's. Everyone raves about it. Maybe ice cream or custard are just not my cup of tea... I got a kid sized Truffle, which was vanilla custard with raspberries and hot fudge. Kid sized was perfect for me! It wasn't anything terribly special, but the menu is so large, I'm sure I'll find something spectacular. My friends seemed to enjoy their treats though! read more

Ollie's Frozen Custard - Truffle - Ice Cream & Frozen Yogurt Near Me - Sycamore, Illinois

Product: Delicious as always. Love the amount of fudge they give you. Staff: People are kind who work here. Wait: 30 minutes is a pretty excessive wait time. read more

I love going to Ollie's. Best place to get ice cream and the employees are always nice.

Went back - a few times. Best thing to order (IMHO) is plain vanilla in a waffle cone. This is the best thing I ordered, and let me appreciate rich goodness of the custard. Chocolate was not chocolatey enough. Just about anything else you can put on top covers up the quality of the custard. Watch for the wonderful little surprise in the bottom of the waffle cone. (Nope! Not a marshmallow.) I'll stop by when I'm in the area... read more