Combine all ingredients in a large coffee mug. Whisk well with a fork until smooth. Pour half of batter into another mug.
Microwave on high for 1 minute (cook each mug one at a time). Check to see if done. If it needs longer, cook for an additional 30 seconds. Mine was done at 1 1/2 minutes. You don’t want to overcook it or it will become rubbery. You also want to keep in mind that the cake will continue to cook a little in the cup while it is cooling. Cool for a few minutes before eating while warm.
Notes
Recipe adapted from Family Kitchen
The nutrition information provided are only estimates based on an online nutritional calculator. This is not a comprehensive list of all the nutrients in the recipe (i.e., does not include vitamins, cholesterol, etc). I am not a certified nutritionist. Please consult a nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.