Modern Underground Bar and Grill

Went here as we were looking for a bar in little Italy. Hidden right below Modern Pastry this place did not disappoint.We got the Pistachio Martini and the Lemon Drop Martini. The Pistachio Martini stood out as the best drink I've had in Boston.We also ate the pepperoni pizza which was quite good.Good place to visit drinks and some appetizers prior to getting the much needed dessert upstairs.The bartender was attentive and took good care of us.

Understandably, very busy on a Friday night. A lot of people stand around since tables fill up quickly. Doesn't seem like they have a body limit, so it gets extremely hot and very loud. I appreciate the cheaper drinks for the area ($16 per)- the pistachio martini is decent, the lemon drop is so mild, not strong at all. The cinnamon toast martini is straight fireball with some cream- would not get again. It's also so well known and well marked (once inside) so the spot doesn't feel like a speakeasy :(I think my rating would be higher if I were to visit on a less busy night and had tried the espresso martini, and I'm curious about the banana bread one.

Good dessert martinis here. I have tried both the espresso martini and the pistachio martini and both were simple but strong and tasty. This bar is simple with no fancy decor and sports playing on the TVs for people wanting to watch a game. However, the best part about this place is the ability to cut the modern pastry line. I have been multiple times where the line is wrapped around the door and I am able to just go downstairs (where you can also order cannolis-- just not as customizable). At modern underground they also have a plenty of other bar-type food offerings. Lastly, they accept credit cards downstairs which is also a bonus since the bakery only accepts cash.

We stumbled upon this place while shopping for deserts upstairs. This little gem is subterranean and I had no idea it was there. I thought we were headed downstairs to find a place to eat the desserts we purchased upstairs. Lo and behold, there is a great little sports bar and pub down there. The bartender was quite pleasant and our waitress was pretty, funny and very good at her job. We had a few drinks, chatted with some locals, ordered a few personal sized pizzas and had a great time. It seems the locals view this as a fun place to take a date as it was definitely "cozy" down there. It's neat, clean and fun. The prices were reasonable and the food was good. It was a fun little accident we enjoyed.

Tuesday evening was our first time here - and would highly recommend. Somehow when I lived in the area, I had no idea this place existed. While small/cozy in the basement of modern pastry, there are multiple tables/chairs, and a number of bar stools around the bar. When we arrived, it was pretty busy, but we happened to catch a couple of people moving to a table/snagged their seats. The bartender was great, the menu is a bit limited, but there are many delicious options. I had an espresso martini that was delicious, and while not on the menu, you can order cannolis as well. I may officially be converted from Mikes to modern - their cannolis are perfectly crunchy, and the filling is more creamy. We will absolutely be back next time we are in the area!

I went here with a group of 6 friends last winter and enjoyed very good espresso martinis. It was packed and we had to be patient for a table to open up for us. We would have been fine with standing if there was some place to set aside our winter jackets. Regardless, we ended up having a great time once we were able to sit.

My friend and I took our lobster tail to enjoy after another round of drinks. It's a divey bar with 6 large flat screen TVs playing two different games. There's a full bar with a handful of tables which was almost entirely full on a Wednesday night. It was packed to the brim at one point so we were grateful to have gotten a table when we could. Service was good when they were slower but then required us to go to the bar as it got busier. Overall, we had a good time and I would come again.

Good breakfast and espresso martini! Really loved the ambiance and the service was great. It was less crowded than I expected on a Saturday.

Located in Modern Pastry, downstairs.Super divey feel with delicious cocktails! Awesome bartender, chill vibes.Cinnamon Martini: Taste just like Cinnamon Toast Crunch! Sweet yet strong.Banana Martini: So creamy & tasty. Sweet & strong as well.

Great martini spread. They aren't your typical martinis, all "desert" type martinis. Still really enjoyed my time tho and they tasted great