Mix together cake mix, yogurt and milk in your mug until smooth. Press into the middle 2 chocolate pieces and cover the top with batter so they are surrounded.
Microwave on high (1000 watt) for 1 minute.
Notes
Oven Directions
You will use the same ingredients above but mix in a bowl and spoon into a 10 oz. ramekin instead. Preheat oven to 350F. and bake for 14 minutes, enjoy.