1 coffee mug
4 Tbsp. cake flour (plain, not self-rising)
4 Tbsp. sugar
2 Tbsp. cocoa
3 Tbsp. milk
3 Tbsp. oil
Small splash of vanilla
3 Tbsp. chocolate chips, optional
Add dry ingredients to mug, mix well with a fork. Add egg, mix thoroughly. Pour in milk and oil and vanilla, mix well.
Add chips, if using.
Place mug in microwave, and cook for three minutes on 1000 watts. Cake will rise over top of mug--do not be alarmed! Allow to cool a little; tip onto a plate if desired. Eat! (This can serve two if you want to feel slightly more virtuous.)