Step 1

Melt peanut butter in a mug for 30-35 seconds, or until a more soft consistency

Step 2

Combine remaining ingredients in same mug and stir very well (make sure egg is totally combined)

Step 3

(optional) top the mug cake with additional mini chocolate chips once mixed

Step 4

Microwave for 1-2 minutes, or until a toothpick inserted comes out clean

Step 5

Serve with vanilla ice cream!