Combine all ingredients into oversized mug. Stir with a small whisk or fork until batter is smooth.
Microwave for 1 1/2 minutes. If cake is not done, microwave for an additional 30 seconds. Serve while warm.
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.