Need an easy gluten-free, dairy-free, and grain-free dessert in a flash? My chocolatey, moist, fluffy almond flour mug cake uses only simple ingredients (I bet you have them all on hand!) for the world's best single-serving dessert. If dense, heavy almond flour cakes have you down, I've got a simple trick to make your chocolate mug cake light and airy.
Grease a microwave-safe 10 ounce mug or ramekin with nonstick cooking spray. Whisk together the egg, sugar, peanut butter, milk, and vanilla extract until as smooth as possible.
1 egg, 2 tablespoons granulated sugar, 1 tablespoon peanut butter, 1 tablespoon milk or dairy-free milk, ½ teaspoon vanilla extract
Stir in the almond flour, cocoa powder, and baking powder, making sure everything is incorporated throughout. If using the chocolate chips reserve those to sprinkle in halfway through cooking.
¼ cup almond flour, 1 tablespoon unsweetened cocoa powder, ½ teaspoon baking powder, 1 tablespoon (optional) chocolate chips
Place in the microwave and cook for 30 seconds. It will start to puff up, but stir the mixture to work in the egg so it doesn't settle to the bottom. If adding chocolate chips, sprinkle them in halfway through cooking. Return to the microwave to cook for 30-45 seconds longer.
The mug cake is done with the top is set, but still slightly wet / moist looking. Let rest for 1 minute before enjoying out of the mug or invert onto a plate.
Notes
Peanut Butter Substitute
Use any preferred nut butter or Nutella. Alternatively, omit the peanut butter and use 1 tablespoon oil or coconut oil in its place. If replacing peanut butter with oil, omit the milk from the recipe.