Protein Mug Cake

This high protein mug cake is chocolaty, moist, and so flavorful! This easy dessert is made with only a few pantry staple ingredients. Great for an afternoon treat, healthier dessert, or even breakfast!
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This chocolate protein mug cake is a delicious and healthy way to satisfy your sweet tooth! It is made with healthy ingredients and it is packed with protein. In fact, this mug cake has 42 grams of protein! Great for a healthier dessert or sweet treat. It is naturally gluten-free, dairy-free, egg-free, and refined sugar-free!

Protein mug cake.

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Why You’ll Love This Recipe

  • This high protein mug cake is quick and easy to make.
  • Just mix the ingredients together and microwave for a minute.
  • In total, this recipe takes only 6 minutes.
  • It is high in protein. So are these Peanut Butter Protein Bars!
  • For a pumpkin flavor, make this Pumpkin Mug Cake!
  • A single serving of this cake contains about 42 grams of protein.
  • Microwave mug cakes are versatile.
  • You can customize the recipe to your liking by adding different flavors of protein powder, fruits, or nuts.
  • It is chocolaty and delicious.
  • The cake is moist and fluffy, with a slightly crispy exterior.
  • They are perfect for any occasion.
  • Protein mug cakes are a great option for a snack, dessert, or post-workout treat.
  • This recipe is gluten-free, dairy-free, eggless, and contains no white sugar.
  • Check out this Chocolate Mug Cake for another fun sweet treat!

Ingredients & Substitutes

Scroll down to the recipe card for the full protein mug cake recipe.

Cocoa powder adds the chocolate flavor. Use regular or dark cocoa powder.

Oat flour is a great choice for this mug cake. It is naturally gluten-free and tastes delicious.

Coconut sugar adds a bit of sweetness.

We love using Prime Protein for this recipe. It only contains unflavored protein. Choose a protein powder that contains no added sugars or preservatives.

Baking powder helps this mug cake rise slightly.

Unsweetened coconut milk helps thin out the batter. Use any type of milk if needed.

Lastly, mini dark chocolate chips add a gooey and melty texture! These do add a little bit of sugar, so feel free to omit them.

Ingredients for protein mug cake.

Taste & Texture

The protein mug cake is moist and fluffy with a slightly crispy exterior. The middle is gooey and melty.

Oat flour gives the mini cake a slightly nutty flavor. In addition, the optional fruits or nuts add a touch of sweetness or crunch.

Overall, this chocolate protein mug cake is rich, decadent, and delicious!

How to Make

Step 1

To start, add all of the ingredients to a large mug or ramekin. Reserve a few mini chocolate chips for garnish.

Oat flour and protein powder in bowl.

Step 2

Mix the ingredients together. The cake batter will be similar to pudding.

Thick chocolate batter in bowl.

Step 3

Next, microwave on high for 60 seconds. If needed, microwave in additional 10-second increments until cooked through.

Microwave mug cake.

Step 4

Use oven mitts to remove the hot mug from the microwave. Sprinkle more chocolate chips on top!

Double chocolate mini cake.

Step 5

Finally, serve this protein mug cake!

Expert Tips for Success

Here are a few expert tips and tricks for making the best protein mug cake.

Use a microwave-safe mug or large ramekin.  It should be at least 8 to 10 ounces in volume.

Microwave the cake on high for 1 minute, or until it is cooked through.

If more time is needed, microwave in additional 10-second increments.

Let the mug cake cool for a few minutes before serving. This will help prevent it from being too hot.

As soon as the mug cake comes out of the microwave, add some chocolate chips on top.  They become soft and gooey!

Bite of protein cake.

Flavor Variations & Add-Ins

You can easily customize this recipe to your liking by adding different flavors of protein powder, fruits, or nuts. Here are a few ideas.

Add in some fresh berries to the cake batter. Diced strawberries or blueberries would be delicious!

Sprinkle in some chopped nuts. This adds crunch and nutrients.

Garnish with sliced bananas on top after microwaving.

Garnish with homemade whipped cream on top!

How to Serve & Store

Protein mug cakes are best served fresh and warm from the microwave.

A dollop of whipped cream or Greek yogurt is delicious on top!

Garnish with fresh berries or chopped nuts.

We also regularly add sliced bananas on top. The chocolate and banana combination is tasty!

They do not do well as leftovers. In addition, do not freeze this mug cake.

Frequently Asked Questions (FAQs)

Can I make this cake ahead of time?

Yes, you can make this cake ahead of time and microwave it later. Just let it cool completely before storing it in the refrigerator. When you’re ready to eat it, microwave it on high for 1-2 minutes, or until it is heated through.

How do I prevent the cake from being too dry?

To prevent the cake from being too dry, add a splash of milk or water to the batter. You can also add a small amount of oil or butter to the batter.

Can you make this in a ramekin?

Yes! Feel free to use a microwave-safe ramekin. If you do not have one big enough, make a couple smaller cakes.

Can you make homemade oat flour?

Sure! To make homemade oat flour, add oats to a blender or food processor. Blend until the mixture is powdery.

Plate with a cake in a bowl.

Equipment Needed

Oven-Safe Ramekins: These 10-ounce ramekins are microwave-safe and easy to use!

You May Also Enjoy

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Enjoy this homemade healthy protein mug cake!

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