This 3-Ingredient Chocolate Protein Mug Cake is the ultimate quick-fix dessert for when you’re craving something sweet but still want to stay on track. It’s rich, moist, chocolatey, and packed with protein—all made in just minutes using simple pantry staples. Perfect for a post-workout treat or a late-night chocolate craving.
Why You’ll Love This Recipe
Ready in under 5 minutes from start to finish
Made with only three simple ingredients
High in protein and naturally flourless
No oven required—just a microwave
Perfect single-serving dessert with no leftovers
Easily customizable with your favorite mix-ins
Ingredients
(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)
1 scoop (30 g) chocolate protein powder
1 large egg
1 tablespoon (16 g) unsweetened cocoa powder
Directions
Lightly grease a standard microwave-safe mug (8–10 oz capacity) with a small amount of oil or cooking spray.
Add the chocolate protein powder, egg, and unsweetened cocoa powder directly into the mug.
Stir thoroughly with a fork or small whisk until the batter is completely smooth and no dry powder remains. Scrape the bottom and sides to ensure everything is well combined.
Microwave on high for 60–90 seconds. Start checking at 60 seconds. The cake should look set on top but still slightly soft in the center.
Allow the mug cake to rest for 1–2 minutes before eating. It will continue to firm up slightly as it cools.
Enjoy straight from the mug or carefully run a knife around the edges and invert onto a plate.
Servings and timing
Servings: 1
Prep time: 2 minutes
Cook time: 1–1½ minutes
Total time: Approximately 5 minutes
Variations
Add 1 tablespoon chocolate chips to the batter for extra richness.
Stir in 1 tablespoon peanut butter or almond butter before microwaving for a nutty twist.
Add a pinch of baking powder for a slightly fluffier texture.
Mix in a few drops of vanilla extract for added depth of flavor.
Top with Greek yogurt and fresh berries for a more balanced dessert.
Storage/Reheating
This mug cake is best enjoyed fresh. However, if needed:
Storage: Cover the mug tightly and store in the refrigerator for up to 24 hours.
Reheating: Microwave for 10–15 seconds to warm it slightly. Be careful not to overheat, as it can become rubbery.
FAQs
Can I use any type of protein powder?
Yes, but whey protein typically gives the best texture. Plant-based protein can work, though the texture may be slightly denser.
Why is my mug cake rubbery?
Overcooking is the most common reason. Start with 60 seconds and increase gradually if needed.
Can I make this without cocoa powder?
Yes, but the chocolate flavor will be milder. You can replace cocoa powder with 1 tablespoon of nut butter for a different flavor.
Can I bake this in the oven instead of the microwave?
Yes. Bake in an oven-safe ramekin at 350°F (175°C) for about 8–10 minutes.
Is this recipe gluten-free?
Yes, as long as your protein powder is certified gluten-free.
Can I double the recipe?
Yes, but use a larger microwave-safe bowl and increase the cooking time in 15-second intervals.
How do I make it sweeter?
Add 1–2 teaspoons of your preferred sweetener, such as honey or maple syrup.
Can I make this dairy-free?
Yes, use a dairy-free protein powder.
Why did my cake overflow?
Your mug may have been too small. Use at least an 8-ounce mug to prevent spilling.
Can I add fruit to the batter?
Yes, small amounts of chopped strawberries or raspberries work well. Add about 1 tablespoon to avoid excess moisture.
Conclusion
This 3-Ingredient Chocolate Protein Mug Cake proves that healthy desserts don’t have to be complicated. With minimal ingredients and just a few minutes, you can enjoy a warm, chocolatey treat that satisfies your sweet tooth while supporting your protein goals. Keep this simple recipe on hand for whenever a quick dessert craving strikes.
This 3-Ingredient Chocolate Protein Mug Cake is a quick, flourless, high-protein dessert made in minutes using just protein powder, egg, and cocoa powder. Rich, moist, and chocolatey, it’s the perfect single-serving treat.
Ingredients
1 scoop (30 g) chocolate protein powder
1 large egg
1 tablespoon (16 g) unsweetened cocoa powder
Instructions
Lightly grease an 8–10 oz microwave-safe mug with cooking spray or a small amount of oil.
Add protein powder, egg, and cocoa powder to the mug.
Stir thoroughly until completely smooth and no dry powder remains.
Microwave on high for 60–90 seconds, checking at 60 seconds. The top should look set but slightly soft in the center.
Let rest for 1–2 minutes before eating to allow it to finish setting.
Notes
Do not overcook to avoid a rubbery texture.
Whey protein gives the best texture; plant-based may be denser.
