One of my friends posted this on her private blog, so I'm going to post it here for all of you. Her family did it for FHE and the kids really enjoyed it.
I just made it tonight after the kids went to bed for Andy and I to enjoy. It was yummy, but you might want to split one egg between two mugs.
It was cool to watch the cake rising over the top of the mug while it cooked in the microwave and then fall when the microwave stopped.
5-MINUTE MUG CAKE RECIPE
4 TBSP flour
4 TBSP sugar
2 TBSP baking cocoa (dry powder)
3 TBSP milk
3 TBSP oil
3 TBSP chocolate chips
a small splash of vanilla
No need to spray or grease mug.
Add dry ingredients to mug, and mix well.
Add the egg and mix thoroughly
Pour in milk and oil, mix well.
Add chocolate chips and vanilla, mix again.
Put your mug in the microwave and cook for THREE minutes @ 1000 watts. The cake will rise over the top of the mug, don't be alarmed! Dump out on plate if desired after cooking (it will almost split in half, so you could share it with another person if you wanted). We sprinkled ours with powdered sugar.