Awesome caramel macchiato. Also had a cranberry orange muffin that was very good. Nice selection of fudge and the cinnamon rolls looked great! read more

While waiting for my drink, I decided to order a piece of fudge to try. Unfortunately, it was disappointing. The fudge lacked flavor and didn't have the rich, creamy taste I was expecting. Overall, it wasn't something I would order again. read more

STALE $5 cookies. Absolutely don't recommend. We tried 3 different ones and all were stale- finally walked off with a stale one. Ridiculous.

We hit this place in the morning. BLT bagel, hot chocolate with soy molk, cinnamon roll, was out of this world. We got there early. Popular eatery. read more

Decent enough coffee. It wasn't very hot which was unfortunate and tasted kind of mediocre but served its purpose. Tasted like chain coffee tbh. read more

We got here just before it closed at 9pm and the people behind the counter were very helpful. We were surprised that there was a bagel store here so had to try it out and were very happy we did! This is an interesting place with bagels and food on one side of the restaurant and fudge and other good stuff on the other side. My wife and I split a Bagel Lunch with turkey and chipotle, avocado and kettle chips and it was really good. Other friends also liked their bagel and of course we all had to go next door and get some fudge. We all would recommend this place to anybody in Keystone. read more

I won't lie, there's only two reasons I chose this spot over the others: 1, yelp reviews, and 2, because if their menu drink, the Buffalo Tail. It caught my eye and I had to try it. It was delicious. My wife had their peanut butter and chocolate Frap, and she enjoyed that as well. A nice place to stop, and their fraps are worth trying. The folks were friendly. read more

Holy Terror Coffee & Fudge - Buffalo Tail Frap - Desserts Near Me - Keystone, South Dakota

See all

Awful. The absolute worst I've ever ordered. My 6 year old daughter threw away her frappe. I ordered an americano and got watered down coffee WITH milk. When I asked them to fix it, they stared at my ticket & argued (in another language) for several minutes and gave me the same thing again. I also threw away my drink. Don't waste your time or money. read more

Cute roadside coffee place. Super friendly staff. Sea Salt Carmel Fudge was like a heavy, dense Milky Way. Fudge is a bit denser than other fudges, so it does not melt in your mouth right away. Super tasty though! And no grainy sugar like in the kind my mom makes! Ice blended s'more mocha was okay. Might have been better iced. read more

See all

Cute little afternoon refresher stop! Great service. The coffee was ok but my fault for blending it. Enjoyed a sea salt caramel brownie.

This review/rating is ONLY in regards to the espresso. Tl;dr -- it sucks. From other reviews, it seems they might have good blended drinks or drip coffee, but I only had the espresso and it was very disappointing. It was thin, watery, and far too bitter with no visible crema. The service was prompt and courteous, thus I give 2 stars instead of 1. read more

Cool coffee shop, subpar product. The barista just wasn't trained to make espresso drinks and it's unfortunate we had to pay 10 bucks to find out. read more

I returned a second time the following week, and the service was just as wonderful. My friend and I were welcomed by the staff, and inquired if we would like any samples of their fudge. I ordered another mocha and it was just as delicious as it was the first time. read more

Loved this place the coffee was amazing! I even brought a bag home. The fudge was just as great! 10 out of 10 the people were so nice as well. read more

Worst Caramel Latte I've ever had. I ordered the 16oz for for $4.99 and my total was $6.21! She said it was .50 extra for the caramel. Nowhere on the menu does it say flavors are an extra charge. PUT IT ON THE MENU! It lists available flavors but no mention of a charge. read more

Fast, tasty coffee and friendly service. We tried the s'more mocha (signature drink) and it did not disappoint. After a long trip it was nice to stop in to a modern, upscale-feeling establishment for a change. Picked up smoothies for the kids, and the service was quick and friendly - a much needed alternative to hotel coffee. read more

Holy Terror Coffee & Fudge - Desserts Near Me - Keystone, South Dakota

The staff is terrific; and, the coffee is quite good (more of a medium roast, to bring out the flavor of the beans than the darker roasted coffees I prefer.) All three of us had special requests, whether it be iced coffee, coffee with a side of ice in a glass, or quirks in preparation. Each of us was fully accommodated; and, they even brought out Splenda, when I didn't see any on the counter. There is plenty of seating; and, wi-fi, as well as tables on which to work (a local real estate agent was busy on her laptop,) We had a great time, just relaxing, waiting for the local attractions to open. If you are in Keystone, make it a point to stop in, you won't be disappointed. Great folks, great coffee! By the way, "Holy Terror" was the name of the now-defunct mine, which has a rich, local history! read more

Holy Terror Coffee & Fudge - Desserts Near Me - Keystone, South Dakota

See all

Awesome fresh cinnamon roll and the coffee was some of the best we had. Bought some fudge and was delicious. The Servers were very friendly and talkative, I would defiantly go back. read more

This place was amazing with the friendliest people ever. We showed up in the rain, but the shop was closed. They let us come in and warm up anyways. We also got a cup of their amazing coffee and some great locals-only info on the best ways to see Mt Rushmore. Thank you so much for letting us in! Also, my mom doesn't usually like coffee, but she couldn't stop drinking the cup that I got. Would recommend Holy Terror to anyone that comes through! read more

What a find!!! I was hoping to find a good coffee house on our road trip and we DID, with Holy Terror Coffee!!! The coffee was EXCELLENT, as was the service. The owner engages with an international work/travel program and we had WONDERFUL conversations with the servers Katarina (Croatia), Sergio (South America... forgive me, I forgot his home country) and Champagne (Thailand). The shop is very clean, well-appointed and maintained... and the gift shop area has an attractive assortment of items. Though we didn't indulge, the fudge looked amazingly good. So... when you find yourselves wanting good coffee in Keystone, HOLY TERROR is the place to go to... read more

Amazing, amazing, amazing fudge!!! Enough said. Nice place, nice atmosphere and great fudge. So much for my diet. Oh well, there's always tomorrow, but I'll have left over fudge so maybe the next day. read more

This was a phenomenal place to stop and try amazing coffee and fudge. The owner/manager is one of the nicest people I have ever met. I left my iPhone there after we had left and had to run back 30 minutes later to try and find it. I asked the manager for help and he jumped up and started making sure everyone there helped me find my phone. Couldn't ask for a better interaction! read more

Best coffee for miles and best travel advisor. Everything he recommended was awesome, places to stay, hikes to attempt, and things not to be missed. To bad we had to move on. read more

Holy Terror Coffee & Fudge - Desserts Near Me - Keystone, South Dakota

Only one customer in front of me, waited 10 minutes without any acknowledgement. Waited 10 minutes for the coffee with people behind me that received their drinks first. read more

Decent place. Liked the real wood tables and seats. Didn't try the coffee, I had the ice spun Caramel Latte. It was good but it could've used a little more coffee bean flavor to it. There's also cinnamon glazed nuts, fudge, cookies, etc... read more

Creamy and delicious fudge. We purchased chocolate and sea salt caramel. Both were equally good.

Best coffee in the area! Owner is so polite and goes out of his way to make your experience great! Amazing coffee, enough seating for lots of people and plenty of parking. Overall great place!!! read more

I'm from out of town, and live close to central Iowa where there are a lot of good coffee shops to choose from. Yesterday, I stopped by and ordered a plain almond milk latte. This was probably the best coffee I've ever had! Most espresso drinks that use almond milk can be quite bitter, but this did not even come close. Holy Terror: great coffee, great service, good fudge! read more

Great place to get some work given the spotty cell service in the area with a great selection of fudges. Additionally, it's located next to a Subway and DQ which makes it a great place to grab lunch at the same time. read more

We got there after 9pm and all that was left was drip coffee. It was okay. Needed espresso for our late night drive to Sioux Falls. read more

Holy Terror Coffee & Fudge - Desserts Near Me - Keystone, South Dakota

Very friendly, fast service and did I mention, great coffee! You ne d to experience this when in Keystone!

This place is great. The barista was super friendly and welcoming. My morning latte was so good that I returned for another. The cheesecake and cookies were fresh and delicious. read more

Thank God someone had some good coffee in this town. And the best chocolate chip muffin I've ever had, delicious!!!

The only really good coffee I have found on my road trip of South Dakota. Really friendly owner and lovely homemade goods. He knows everything about stoves! Great guy! read more

Great strong coffee. Very friendly staff and I recommend getting a punch card. Every 7th cup is free.

We visited Holy Terror 3 times on our recent visit (last week) to the Keystone, SD area. I thought their name and logo were great so I couldn't wait to go. The first time I ordered a cold blended mocha. A gentleman from Columbia made it. It was outstanding! The next day, we stopped in to get another. A young lady made my drink. A few minutes in, I noticed she was making a hot drink. I said, "Excuse me, I asked for a iced/blended mocha." She said, "Ok." She then took the hot drink and put it in the blender, adding ice afterward. It tasted awful...not much mocha flavor at all. The third day, I figured I'd head back to see if the other guy was working...he was! The manager or owner was apparently working as well. He had a DQ shirt on. Apparently they own both DQ and Holy Terror. I told him in detail what happened over the past few days AND that my drink the previous day was terrible. He simply said, "Yeah, we'll have to do better training with her. She is nice but doesn't make the best drinks." That's it. He didn't apologize and he didn't offer a free drink or discount. I was in shock. Apparently I was in so much shock that I ordered another since the Columbian guy was there. It was decent but still slightly less flavorful than the first day. On the 4th day, I was thinking..."Fool me once, etc.!" I went to Grapes and Grinds and started over. Their atmosphere was better and the workers were actually friendly. That's my 2 cents. Take it for what it's worth. Hopefully the owner of this place starts training his workers. read more