Step 1

In a microwave-safe mug (that can hold at least 12 oz of liquid), add all ingredients. Mix with a small whisk until batter is smooth.

Step 2

Cook cake in microwave at full power for about 1 minute 20 seconds. The cake will initially rise quite high while it cooks before settling back down. You can replate the cake in a smaller mug for presentation (which is what I did for the photos in this post). Be careful to not overcook the cake because that will cause the cake to harden as it cools. Top with your favorite frosting or syrup. I topped mine with some whipped cream. Allow the cake to cool a few minutes before eating.