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Protein Mug Cake

Protein Mug Cake

A quick and easy 4-ingredient protein mug cake made with protein powder, egg, milk, and baking powder. Ready in under 5 minutes in the microwave.
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Prep Time 2 minutes
Cook Time 2 minutes
Total Time 4 minutes
Servings: 1
Course: Dessert
Cuisine: American
Calories: 200
Ingredients Method Notes

Ingredients
  

Main ingredients
  • 1 scoop protein powder vanilla or chocolate; whey or plant-based
  • 1 large egg
  • ¼ cup milk dairy, almond, oat, or soy
  • ½ teaspoon baking powder
Optional add-ins
  • Nut butter
  • Mini chocolate chips
  • Cinnamon

Method
 

  1. Add the protein powder and baking powder to a microwave-safe mug. Mix well with a fork.
  2. Add the egg and milk. Stir until the batter is smooth and evenly combined.
  3. Microwave on high for 60–90 seconds. Start with 60 seconds and continue in 10-second increments if needed. Avoid overcooking.
  4. Let the mug cake rest for about 30 seconds before serving. Add your favorite toppings if desired.

Notes

  • Start microwaving for 60 seconds and add extra time in 10-second increments if needed. Avoid overcooking to keep the mug cake soft and fluffy.
  • Protein powders vary in texture, so you may need a small splash of milk if the batter seems too thick.
  • Let the mug cake rest for about 30 seconds before serving.