Combine all ingredients in an oversized coffee mug.
Whisk well with a small whisk until smooth. Microwave on high for 1 1/2 minutes and then take it out to check to see if it is done. If not, microwave for another 30 seconds. You don’t want to overcook it or it will become rubbery. You can also make this into two smaller-sized mugs. You can mix the batter all in one mug and then pour half into another mug. Make sure you cook each one individually.