5-Ingredient Protein Mug Cake

4.54 from 50 votes
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This protein mug cake requires only 5 ingredients! It’s sweet, soft, delicious, and super quick to make. All you need is 5-7 minutes! The mug cake is gluten-free, high protein, and vegetarian.

Chocolate cake is always an extremely popular dessert choice. As it should be. It’s rich, decadent, and extremely delicious. What if you could create that dessert at home?

This protein mug cake recipe is going to help you do that. It’s guilt-free and will help you stick to your healthy eating goals.

mug cake topped with whipped cream

Most importantly, you can make it in just a few short steps and without a big mess. You don’t even an oven! The “baking” is done in less than two minutes in the microwave.

This protein mug cake is the perfect single-serving dessert option. You won’t feel guilty about eating cake.

The cake has 23 grams of protein and no refined sugars. The sweetness comes from natural, whole foods.

fork cutting piece of mug cake

Ingredients You’ll Need

Banana (1)

Egg (1)

Vanilla protein powder (1 tbsp) – Chocolate protein powder would also work here

Dark chocolate chips (2 tbsp)

Cocoa powder (1 tbsp)

How to Make Protein Mug Cake

Step 1. Mash the banana with a fork. You can do that in a separate bowl or right in the mug that you will be using. Using a ripe banana will be much easier here. It will be softer and easier to mash.

Step 2. Add the egg, cocoa powder, protein powder, and chocolate chips. Combine them all together.

Try to smooth out any clumps of bananas. The cake will be lighter and fluffier if you mix everything together well.

Step 3. Pour the ingredients into a mug (if you weren’t already mixing in the mug).

Place the mug in the microwave and cook for 1-2 minutes. Decrease the cooking time if you want the texture to be more like a chocolate lava cake.

Step 4. Enjoy the warm cake right away! It’s so satisfyingly delicious with a hot cup of coffee or tea.

Can You Add Protein Powder to Cakes?

Adding protein powder is a really great way to increase the protein in baked goods.

You can add as much as 6 grams of protein by adding the powder to your recipes. It also offers a great way to experiment with flavors.

This recipe calls for vanilla protein powder. This protein powder could be used for that. Feel free to also try chocolate, coffee, or even peanut butter flavors.

top view of mug cake with whipped cream

What Can I Replace Protein Powder With?

What can you use? Let’s explore the options:

  • Substitute the protein powder with an equal amount of almond flour or other gluten-free flour
  • Mix in 1 tablespoon of hemp powder to the mixture before cooking

Note: You can omit the protein powder altogether (and not replace it with flour). The cake might turn out a bit more gooey and less dense.

close up of mug cake topped with whipped cream

Is It OK to Microwave Protein Powder?

There is no issue with microwaving something that has protein powder. The protein powder is just as functional when served at room temperature, cold, or hot.

The heat may denature the protein to some extent (meaning slightly alter their structure). However, the amino acids and general purpose of the protein powder will remain unaffected.

In fact, protein powder is perfect for trying in different ways. It’s not just for shakes.

Other Recipes You Might Like:

Watch Full Instructions

protein mug cake
4.54 from 50 votes

5-Ingredient Protein Mug Cake

By Karo @ AllNutritious
Just with 5 ingredients, make this protein mug cake! It's a simple sweet dessert that's healthy and nutritious! It's gluten-free, vegetarian, and high protein.
Prep: 5 minutes
Cook: 2 minutes
Total: 7 minutes
Servings: 1 mug cake



  • Mash the banana.
  • Mix all the ingredients in a relatively large mug.
  • Microwave for 1-2 minutes on highest wattage.

Recipe Video


Serving: 1 mug cake | Calories: 395kcal | Carbohydrates: 50g | Protein: 19g | Fat: 16g | Saturated Fat: 11g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 2g | Trans Fat: 0.02g | Cholesterol: 193mg | Sodium: 133mg | Potassium: 806mg | Fiber: 6g | Sugar: 26g | Vitamin A: 316IU | Vitamin C: 10mg | Calcium: 200mg | Iron: 2mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Tried this recipe?Leave a comment below with your rating! I love the feedback and respond to every comment!

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  1. Catherine Stockton says:

    Hi, is the calorie count on this correct? Surely the mug cake cant be 499 calories? Was it meant to say 499 kilojoules? And then 119 calories? Thank ou!

    1. Karo @ AllNutritious says:

      Hello Catherine,

      thanks for pointing this out! The mug cake is a total of 395 calories!
      1 banana – 105 kcal
      1 egg – 72 kcal
      1 tbsp vanilla protein powder – 56 kcal
      1 tbsp cocoa powder – 21 kcal
      2 tbsp dark chocolate chips – 115 kcal