Fudgy Mug Brownie

4.91 from 21 votes

This single serve Fudgy Mug Brownie whips up in the microwave in less than 10 minutes! It's sure to fulfill any urgent chocolate cravings!

Prep Time5

Cook Time1

Total Time6

Course: Dessert

Cuisine: American

Servings: mug brownie

Calories: 722kcal

Author: Kayla Burton

Equipment

(1) 11-12 ounce mug
Fork
Measuring spoons
Scale or measuring cups

Ingredients

¼ cup (42 g) semi-sweet or dark chocolate chips/chunks
2 tablespoons (28 g) unsalted butter
2 tablespoons (25 g) granulated sugar*
2 tablespoons (25 g) light brown sugar packed
1 large (33 g) egg white (~30g) room temperature
2 tablespoons (15 g) all-purpose flour
2 teaspoons (4 g) cocoa powder
1 tiny pinch (1 tiny pinch) salt

Instructions

Melt the chocolate and butter in an 11-12 ounce mug (~40 seconds, stir every 20 seconds) just until the chocolate is almost melted. Stir the melted butter and mostly melted chocolate until it's smooth and completely melted.
Mix in the sugars and then the egg white (make sure the mixture has cooled before adding the egg white so that it does not turn into scrambled eggs). Stir with a fork until the mixture is slightly thick (1-2 minutes).
Add the flour, baking cocoa and salt. Gently stir with the fork until no flour streaks remain.
Microwave the mixture on 50% power for 30-40 seconds. Enjoy!*

Video

Notes

*If you prefer less sweetness, feel free to omit the granulated sugar.

*The brownie will be hot out of the microwave, so be careful not to burn your mouth! (I learned this the hard way)

Microwave times may vary. If the brownie is too gooey, heat it for a few more seconds. If it's too cakey, it was likely heated for too long or at too high of a power.

If there happens to be leftovers, cover the mug and store at room temperature for 1-2 days.

The provided nutrition information is an estimate, the calorie accuracy is not guaranteed.

Nutrition