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Chocolate Protein Mug Cake - A Quick, Satisfying Treat You Can Make in Minutes

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Prep Time 5 minutes
Cook Time 2 minutes
Total Time 7 minutes
Servings: 1 servings
Ingredients Method

Ingredients
  

  • 1 scoop (25–30 g) chocolate or vanilla whey protein powder (or a plant-based protein blend)
  • 1 tablespoon unsweetened cocoa powder
  • 2 tablespoons oat flour (or almond flour; see Alternatives)
  • 1/2 teaspoon baking powder
  • 1–2 tablespoons granulated sweetener (sugar, coconut sugar, or a zero-calorie sweetener)
  • 2 tablespoons milk (dairy or non-dairy)
  • 2 tablespoons Greek yogurt (or applesauce/mashed banana for dairy-free)
  • 1 teaspoon neutral oil (or 1 teaspoon nut butter)
  • 1/2 teaspoon vanilla extract (optional, but recommended)
  • Pinch of salt
  • Optional add-ins: 1 tablespoon mini chocolate chips, chopped nuts, a pinch of instant coffee, or a square of dark chocolate

Method
 

  1. Choose the right mug. Use a microwave-safe mug that holds at least 12 ounces. A wider mug helps the cake cook evenly.
  2. Mix dry ingredients. In the mug, whisk the protein powder, cocoa powder, oat flour, baking powder, sweetener, and salt with a fork until no lumps remain.
  3. Add wet ingredients. Stir in the milk, Greek yogurt, oil, and vanilla. Mix until smooth. The batter should be thick but pourable. If it’s too dry, add 1–2 teaspoons of milk.
  4. Fold in extras. If using chocolate chips, nuts, or coffee powder, fold them in now. For a molten center, press a square of chocolate into the middle.
  5. Microwave in bursts. Cook on high for 30 seconds. Pause and check the top. Continue in 10–15 second bursts until the cake rises and the top looks set. This usually takes 50–75 seconds total, depending on your microwave.
  6. Check doneness. The center should be just moist but not wet. If the sides are pulling away and it smells toasty, it’s done. Avoid overcooking, which leads to rubbery texture.
  7. Rest briefly. Let the cake sit for 1–2 minutes. It will finish setting and cool to a perfect eating temperature.
  8. Add toppings. Enjoy as is or top with a spoon of yogurt, a drizzle of peanut butter, a few berries, or a dusting of cocoa powder.