This protein mug cake is just the sweet treat you’ve been looking for. This recipe calls for 6 simple ingredients and is ready to eat in just one minute! Plus, it packs in 15 grams of protein–making it the perfect post workout snack, satisfying breakfast, or healthy dessert.
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This post was first published on March 4, 2021. It was updated on October 18, 2023 to include new photos and helpful tips.
What ingredients do I need to make this recipe?
Gather just 6 simple ingredients for this protein powder mug cake. Chances are you already have them lying around your pantry!
- Banana naturally sweetens our mug cake. It’s important to choose a ripe banana (the more brown, the better!) because the riper the banana is the sweeter it will be.
- Protein powder provides the bulk of the protein. If you want a vanilla protein mug cake, use vanilla protein powder. For more of a double chocolate feel, use chocolate protein powder. If you are using an unflavored protein powder, you may want to add a spoonful of maple syrup for sweetness. Protein powder also makes a great addition to energy bites and morning protein coffee.
- Peanut butter makes this mug cake extra creamy and delicious.
- Milk helps the dry ingredients break down into a batter-like consistency.
- Chocolate chips add a burst of sweet flavor.
- Baking powder helps give our mug cake it’s extra fluffy, cake-like texture.
How to make a protein mug cake
Say hello to the easiest cake-like sweet treat you’ll ever make. Here’s how to whip up this 1 minute mug treat.
First, stir together all the ingredients in a large mug.
The large mug helps make sure it doesn’t spill over the sides when you cook it. I also like to spray the mug with cooking spray before adding the ingredients to prevent sticking, but you don’t have to.
Then, microwave your mug for one minute.
After the 60 seconds is complete, check to make sure it’s cooked through and has a cakey texture. If it’s still liquidy, microwave for another 15 seconds.
Finally, drizzle over extra peanut butter and chocolate chips.
Or use any other toppings you like. This mug cake would also be great with a scoop of ice cream, a sprinkle of toasted coconut flakes, or a drizzle of maple syrup for extra sweetness.
When stirring together all the ingredients before microwaving, you should reach a pancake batter-like consistency. However, depending on the protein powder used, this can vary.
- Too dry? If your batter is somewhat dry or overly thick. Stir in 1 tablespoon of milk to thin out the batter.
- Too wet? On the other hand, if you find it too wet or liquidy, stir a bit more protein powder to thicken it up.
Is this protein powder mug cake recipe vegan?
The recipe as written is naturally gluten-free and vegetarian. This mug cake caters to other dietary preferences as well.
- Vegan: Make this recipe vegan by using a pea or soy based protein powder. They also have vegan-friendly protein powders that contain a blend of various plant based proteins. You could also replace the protein powder for almond flour or oat flour which turns out just as delicious!
- Dairy-free: To make a dairy-free mug cake, use non-dairy milk.
- Nut-free: Peanut allergy or nut-free? No problem. Simply replace the peanut butter with another nut or seed butter. I love using 88 Acres Seed Butters.
- Sugar-free: This recipe is already low in added sugar but if you want it completely added sugar-free, use stevia sweetened chocolate chips like Lily’s Dark Chocolate Chips.
Is this protein mug cake healthy?
Absolutely! This recipe packs in 15 grams of protein and 7 grams of fiber. This balance of nutrients provides long-lasting energy and helps you feel more satisfied. This mug treat is low in added sugars and is naturally sweetened from ripe banana. Feel free to enjoy this protein powder mug cake for breakfast or dessert.
You can also make this recipe ahead of time by mixing up all ingredients in your mug and then microwaving later on when you want it.
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Protein Mug Cake
- Large Coffee Mug (A 16-ounce mug is ideal)
- Cooking spray
- 1/2 small ripe banana, mashed
- 2 tablespoons (about 15 grams) protein powder of your choice (vanilla or chocolate protein powder typically works best)
- 1 tablespoon peanut butter, plus more for topping
- 1 tablespoon mini dark chocolate chips, plus more for topping
- 1/8 teaspoon baking powder
- 1 tablespoon milk of your choice (almond milk, soy milk, dairy milk, oat milk) – only use if needed
- Spray a large 16-ounce mug* with cooking spray.
- Add banana to mug and mash with a fork until mostly broken down.
- Add in protein powder, peanut butter, chocolate chips, and baking powder and stir until fully combined.
- At this point, you should reach a batter-like consistency. However, depending on the protein powder used, it may still be somewhat thick and dry looking. If this is the case, stir in the 1 tablespoon of milk to thin into a batter. On the other hand, if you find it too wet, add a bit more protein powder.
- Microwave mug cake for 60-90 seconds. Then, let cool for 30 seconds. Batter should be mostly dry to the touch and have a cakey texture.
- Enjoy with additional peanut butter and chocolate chips on top, if desired.