- STEP 1
Add dry ingredients to mug, mix well with a fork.
- STEP 2
Add egg, mix throughly.
- STEP 3
Pour in milk, oil and vanilla, mix well.
- STEP 4
Add chocolate chips if desired. Push a dollop of peanut butter into the center of the batter if desired.
- STEP 5
Put mug into microwave and cook for three minutes on 1000 watts.
- STEP 6
Cake will rise over top of mug. Allow to cool for 2 minutes.