1. Crack an egg into your mug.
2. Add 3 Tablespoons of brown sugar.
3. Toss in 1/3 cup of flour and a tablespoon of softened butter.
4. 3-4 tablespoons of mini chocolate chips top it all off.
5. Mix your cake together with a spoon.
6. Microwave your cake for 1 1/2-2 minutes, or just until the top center of the cake has set. Serve with a dollop of ice cream and enjoy!