This peanut butter mug cake recipe is moist, fluffy, and full of rich peanut butter flavor. Made with just 3 ingredients, it takes less than a minute to bake.
In a small mixing bowl, add all your ingredients and whisk together, until combined.
Transfer your mug cake batter into a greased microwave-safe ramekin or cereal bowl. Microwave for 45 seconds-1 minute. Remove from the microwave and let sit for a minute, before eating.
Oven Instructions
Preheat the oven to 180C/350F. Grease an oven-safe ramekin (6-8 inches) with oil. Make the batter before transferring to the ramekin. Bake for 8-10 minutes.