Flourless Peanut Butter Chocolate Chip Mug Cake

Directions

1. 1
   Add all ingredients except chocolate to a large microwave-safe mug.
2. 2
   Mix with a small whisk until batter is very smooth. Stir in 1 tbsp of chocolate chips (or chopped chocolate if using).
3. 3
   Sprinkle remaining chocolate chips over surface of cake.
4. 4
   Cook cake at full power in the microwave for about 1 minute and 15 seconds or until cake is done.