I made this a bit ago, and it turned out perfect! I loved the addition of the chocolate chips.
4 T sugar
3 1/2 T flour
2 T cocoa
3 T oil
3 T milk
2-3 T semi sweet chocolate chips
In a large coffee mug, combine sugar, flour and cocoa.
Stir in egg.
Stir in oil, milk and vanilla.
Stir in chocolate chips.
Cook in microwave on high power 3 minutes.