Onyx Tonics

Great place to get delicious third wave espresso and specialty coffee drinks. They are clearly an espresso focused shop but do also serve regular coffee as well. I do appreciate the serving size of their espresso which seems to almost be a quad shot as opposed to just a double. I will 100% be back whenever I’m in the area.

Best coffee in the US yet found! We’re from the UK, nearing the end of a two-week tour of NY and Vermont. Best coffee so far, including Brooklyn. I was sad not to meet the owners: I see from the website that in the past, founder Jason worked at my absolute favourite UK coffee shop, Colonna and Small. However, the coffee absolutely does not disappoint. Make this place a destination when you visit Burlington!

A very neat coffee experience, it's amazing how coffee tastes when it's made thoughtfully. I appreciate the detailed descriptions of each roast and the helpful suggestions from the barista. Lots of space to sit and sip.

Guilty of stereotypical profiling, I expected the type of high-acidity coffee traditionally found in other places of a similar aspirational aesthetic; the coffee equivalent of natural wines or craft beers. Instead, I stumbled on arguably the best coffee I ever had, with textural richness and a distinct torrefaction complexity. Thanks for the absolutely unique and thoughtful sensory experience!

Some very tasty coffee, artfully made with great raw materials can be had here. There are many curated blends to choose from and excellent friendly team serving them. The honey blossom were donuts were tasty and generously filled and very tasty. Almost like they are the made with sour dough. Definitely a must try!

Awesome coffee,PhD-level coffee knowledge. If you Love the Bean, then you owe yourself a visit to Onyx.

Definitely a brewed awakening! I like the "choose your own adventure" menu with different coffees and ways to prepare. The description of my choice was spot on and different from any other coffee I've had even with oat milk - yum! The family enjoyed the hot chocolate and baked goods as well. Worth a visit!

Wonderful espresso options with natural hints of berries, nuts, or fruits. I love the environment and baristas just as much as their cappuccinos.

I'm really glad I decided to listen to my fellow reviewers for this coffee recommendation, holy cow this is a truly awesome place. These folks genuinely care about making great coffee and aren't pretentious about it either. Seats at the counter so you can have a friendly chat with the barista and they make a great cold brew.

Maple oat iced latte was delicious and refreshing. Nice ambiance. Yes kind of pricey but you don’t feel ripped off because it’s good wish I had a chance to try more