Chocolate Protein Mug Cake

Name: Chocolate Protein Mug Cake
Prep time: 3 min
Cook time: 2 min
Total time: 5 min
Yield: 1 servings
Cuisine: American
Ingredients: 1 scoop (30 g) chocolate whey protein powder; 1 tbsp unsweetened cocoa powder; 1 1/2 tbsp (12 g) oat flour; 1/4 tsp baking powder; 1 large egg white; 1/4 cup (60 g) unsweetened applesauce; 1 tbsp pure maple syrup; 1 tbsp (10 g) dark chocolate chips

A fudgy chocolate protein mug cake made in the microwave in about a minute, with protein powder and egg white. 31 grams of protein.

31g protein
320 calories
5 minutes
1 servings

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By The Protein First Kitchen Team. Published October 16, 2026

Photo by @ddealmeida on Unsplash

When you want a warm chocolate cake right now, this protein mug cake is it: one mug, about two minutes total, and 31 grams of protein. The applesauce keeps it moist and the chocolate chips melt into fudgy pockets.

The one rule: undercook it

Whey protein sets fast in the microwave. The difference between fudgy and rubbery is about 15 seconds. Start with 60 seconds, look at the center, and stop as soon as it no longer looks wet. It keeps cooking from residual heat while it rests.

Serving ideas

A spoon of plain Greek yogurt on top adds a cool, tangy contrast and 3 more grams of protein.
A few raspberries cut the richness.
For an extra-fudgy center, drop a teaspoon of peanut butter into the middle of the batter before cooking.

Feeding more than one? Bake a pan of fudgy protein brownies. And for a warm chocolate fix you can drink, try protein hot chocolate with 33 grams of protein.