5 minute chocolate cake in a mug

In a 1 1/2 cup mug combine:

4 Tb. flour
4 Tb. brown sugar
2 Tb. cocoa
3 Tb. milk
1 egg
2 Tb. oil
about 1/4 cup chocolate chips
opt: dash of cinnamon
1/8 tsp vanilla
mix well and cook in microwave for about 2 minutes.Cake will rise above top of mug. Frosting is optional. Best if eaten warm.