Step 1

Lightly grease an 8 to 10-ounce microwave-safe mug or ramekin. with cooking spray and then mix together cake mix, water and oil inside.

Step 2

Add cake mix, oil, and water to the inside of the mug or ramekin and stir to combine.

Step 3

Microwave on high for 1 minute then check for doneness. Continue cooking in 10 second increments until done.

Step 4

Remove from microwave and allow to cool for a couple minutes. Add optional frosting and sprinkles, if desired.