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A warm chocolate chip mug cake in a speckled ceramic mug, topped with melted chocolate, sea salt, and a gold spoon.

Quick & Fluffy Vanilla Protein Mug Cake

A speedy, high-protein mug cake perfect for a healthy dessert or snack. Ready in minutes, it's a delicious way to satisfy sweet cravings with minimal effort.
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Prep Time 3 minutes
Cook Time 2 minutes
Total Time 5 minutes
Servings: 1 serving
Course: Dessert, Snack
Cuisine: American
Calories: 201
Ingredients Equipment Method Notes

Ingredients
  

Dry Ingredients
  • 1 scoop Vanilla Protein Powder (approx. 30g, whey or plant-based)
  • 2 tbsp All-purpose flour (or almond/oat flour for gluten-free option)
  • 1/4 tsp Baking powder
  • 1-2 tsp Granulated sweetener (e.g., erythritol, stevia blend, or sugar, adjust to taste)
Wet Ingredients
  • 1/4 cup Milk (dairy or non-dairy such as almond, soy, or oat milk)
  • 1 tbsp Unsweetened applesauce (or 1 tsp oil like coconut or avocado oil)
  • 1/4 tsp Vanilla extract
Optional Mix-ins/Toppings
  • 1 tbsp Mini chocolate chips

Equipment

  • Microwave-safe mug (12-16 oz)
  • Small whisk or fork
  • Measuring spoons
  • Measuring cups

Method
 

Prepare the Batter
  1. In a microwave-safe mug (12-16 oz recommended), combine the protein powder, all-purpose flour, baking powder, and granulated sweetener. Whisk thoroughly with a small fork or mini whisk until all dry ingredients are well combined and no clumps remain.
  2. Add the milk, unsweetened applesauce (or oil), and vanilla extract to the dry mixture. Mix well, scraping down the sides of the mug, until a smooth, uniform batter forms. Ensure there are no pockets of dry ingredients.
  3. If desired, gently fold in any optional mix-ins like chocolate chips.
Cook the Mug Cake
  1. Microwave the mug on high for 60-90 seconds. Cooking time can vary significantly based on your microwave's wattage. Start with 60 seconds, then check. If the cake still looks very wet, microwave in additional 15-second increments until the cake is set and firm to the touch but still slightly moist.
  2. Be careful not to overcook, as this can lead to a dry, rubbery texture. It's better to slightly undercook it than overcook.
Serve
  1. Carefully remove the hot mug from the microwave. Let the mug cake cool for 1-2 minutes before eating directly from the mug, or gently invert it onto a plate if you prefer. Top with extra chocolate chips, a dollop of Greek yogurt, or fresh berries, if desired.
  2. Serve immediately and enjoy!

Notes

Different protein powders (especially plant-based vs. whey) can absorb liquids differently. You might need to adjust the amount of milk by 1-2 teaspoons to achieve the right batter consistency. For a richer flavor, consider adding a pinch of cinnamon or a tiny amount of cocoa powder with the dry ingredients.