Ultimate Fudgy Mug Brownie: The Single-Serving Dessert That's Ready in Minutes

Sometimes, you just need a quick chocolate fix, and a fudgy mug brownie is the perfect solution. It's rich, gooey, and incredibly easy to make in just a few minutes. This recipe is designed for a single serving, making it perfect for satisfying those late-night chocolate cravings without overindulging. Plus, there's minimal cleanup involved since you mix and cook everything in the same mug.

Unlike traditional brownies, this mug brownie doesn't require eggs, which not only makes it simpler but also gives it a distinct, fudgy texture. The combination of cocoa powder and chopped dark chocolate ensures a deep chocolate flavor, while the oil and water keep the brownie moist. This brownie is best enjoyed warm, straight out of the mug with a spoon.

One thing to note is that this brownie won't rise much, so don't be alarmed if it only fills about two-thirds of your mug. If you want a larger portion, it's better to make multiple single servings rather than trying to double the recipe in one mug, as this helps it cook more evenly.

Here’s how to make a delicious fudgy mug brownie:

Fudgy Mug Brownie Recipe

Fudgy Mug Brownie

This recipe is designed for a single serving, making it perfect for satisfying those late-night chocolate cravings without overindulging.

Prep Time: 35 minutes
Cook Time: 45 minutes
Total Time: 80 minutes
Yield: 5 Cupcakes
Category: Dessert
Method: Microwave
Cuisine: American
Fudgy Mug Brownie
Rating: 4.9 / 5 based on 500 reviews


2 1/2 tablespoons Dutch process cocoa powder
1 1/2 tablespoons all-purpose flour
2 tablespoons granulated white sugar
2 tablespoons canola, vegetable, or olive oil
2 tablespoons water
1 1/2 tablespoons chopped dark chocolate


  1. In an 8 oz microwave-safe mug, add the cocoa powder, flour, and sugar. Whisk together with a mini whisk or fork until well combined.
  2. Add the oil and water to the dry ingredients. Whisk briskly until the batter is smooth, making sure to break up any lumps of cocoa or flour.
  3. Stir half of the chopped dark chocolate into the batter. Sprinkle the remaining chocolate on top.
  4. Microwave the mug brownie on full power for about 40 seconds. Cooking times may vary depending on the wattage of your microwave. The top of the brownie should no longer be wet but may still be slightly moist.
  5. Allow the brownie to cool for a few minutes before eating. Enjoy it warm directly from the mug with a spoon.

Enjoy your quick and decadent fudgy mug brownie!


  • This recipe yields a small, rich, and fudgy brownie, similar in size to a typical brownie slice.
  • The brownie will only rise about two-thirds of the way up an 8 oz mug.
  • For photography purposes, you might want to double the recipe to show more brownie in the mug, but it cooks more evenly as a single serving.
  • The texture of this brownie is looser than typical brownies because it doesn't contain eggs. If you prefer a slightly firmer texture, you can replace 1 tablespoon of water with 1 tablespoon of whisked egg.
  • This brownie is best enjoyed warm, as it loses some of its fudgy texture once it cools.