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fluffy chocolate protein powder mug cake with melted center

How to Make a Protein Powder Mug Cake

An easy, vegan-friendly chocolate protein powder mug cake made with oat flour, cocoa powder, and almond milk. Quick, fluffy, and ready in 5 minutes.

  • Total Time: 6 minutes
  • Yield: 1 mug cake

Ingredients

Scale

3 tablespoons oat flour

2 tablespoons protein powder (pea or almond)

2 teaspoons unsweetened cocoa powder

12 tablespoons sweetener of choice (sugar, coconut sugar, or erythritol)

½ teaspoon baking powder

¼ cup unsweetened almond milk

1 ½ tablespoons dairy-free dark chocolate chips (optional)

Instructions

1. In a microwave-safe mug, whisk oat flour, protein powder, cocoa powder, baking powder, and sweetener.

2. Add almond milk and stir until smooth.

3. Fold in dark chocolate chips if desired.

4. Microwave for 90 seconds or until the cake rises and sets.

5. Let the mug cake rest for 1 minute before eating.

Notes

For a keto option, use 1 tablespoon of coconut flour instead of oat flour.

To make it creamier, add 1 teaspoon coconut oil or nut butter before cooking.

Baking option: Bake at 350°F (180°C) for 12–18 minutes in a ramekin.

Enjoy immediately for the best texture.

  • Author: Rita
  • Prep Time: 5 minutes
  • Cook Time: 1 minute
  • Category: Healthy Mug Cakes
  • Method: Microwave
  • Cuisine: American