Step 1: Gather all of the ingredients
Step 2: Grease the inside of the mug with cooking spray.
Step 3: Measure out hot chocolate mix and flour
Step 4: Crack the egg
Step 5: Measure out oil
**Use your spoon to scrape the bottom. Fold the bottom mixture onto the top a few times to get all of the dry ingredients (chocolate powder and flour) moistened and incorporated with the wet ingredients (egg and oil).
Step 6: Put into microwave
**Timing may be different for various watt amounts.
Step 7: Remove from microwave
**Stick a toothpick inside the center of the cake to unsure that the cake is fully cooked. If the toothpick comes out with wet batter on it, the cake is not done.