Peanut Butter Mug Cake
This peanut butter mug cake takes only 5 minutes and comes out soft, fluffy, and moist! Sprinkle some chocolate chips or add more peanut butter on top for an extra tasty mug cake. When you’re in a hurry, this peanut butter mug cake is a great choice for a treat.
In addition, it has a whopping 30 grams of protein! It’s like a mix of a peanut butter cookie and a moist cake, with a yummy peanut butter taste that’s not overly sweet.
Why You’ll Love This Recipe
- This homemade peanut butter mug cake takes only 5 minutes.
- It is made entirely in the microwave.
- This vegan mug cake has 30 grams of protein.
- It is satisfying and filling.
- The chocolate peanut butter flavor is delicious!
- Every bite is a treat. Try these Peanut Butter Blondies too!
- Great for breakfast, an afternoon snack, or dessert.
- This recipe is great for many diets and lifestyles.
- This mug cake is gluten free, dairy free, egg free, refined sugar free, and vegan.
- Check out this Protein Mug Cake for another delicious mug cake recipe!
Ingredients & Substitutions
These are the main ingredients and substitutions for this chocolate peanut butter mug cake. Scroll down to the recipe card for full ingredients list and instructions.
Oat flour is a good choice for a healthier flour. If you don’t have it, use 3 tablespoons of almond flour instead.
For the protein powder, use unflavored or vanilla. Do not use whey protein if possible. It does not bake as well.
Baking powder makes the mug cake rise a bit.
Coconut sugar gives a natural sweet taste. It is a popular sugar substitute for Paleo diets and works well in this healthy mug cake recipe.
Non-dairy milk makes the batter thinner. You can use almond milk, coconut milk, cashew milk, or coconut milk. If you are not vegan or dairy free, feel free to use regular milk.
Lastly, dark chocolate chips add a delicious garnish!
Taste & Texture
This healthy peanut butter mug cake is soft, fluffy, and moist. The chocolate chips become melty and gooey!
The main flavor is peanut butter. In addition, the chocolate on top adds decadence!
This mug cake tastes like chocolate and peanut butter.
How to Make
Step 1
First, add all ingredients except for the chocolate chips to a mug or ramekin. Stir to combine.
Step 2
Microwave for 50 to 60 seconds. Remove from the microwave. If needed, microwave for an additional 10 seconds.
Step 3
Carefully remove the mug cake from the microwave with oven mitts. Immediately sprinkle the chocolate chips on top.
Step 4
Lastly, serve!
Expert Tips & Tricks
Here are a few tips and tricks for making the perfect peanut butter mug cake.
Use all natural peanut butter made from only peanuts and salt.
Choose protein powder with a good taste. I do not recommend using whey protein.
The batter will be somewhat thin.
Do not microwave for too long.
Immediately add the chocolate chips on top after microwaving so they melt!
How to Serve & Store
This chocolate peanut butter mug cake is best served warm! Garnish with some chocolate chips on top after microwaving.
Add your favorite toppings, such as whipped cream, chopped nuts, or fruit.
For the ultimate treat, top with some healthy ice cream!
For more high protein recipes, check out Protein Banana Muffins, Vegan Protein Cookies, Protein Brownies, Protein Overnight Oats, and Protein Banana Bread.
For a healthy protein snack, try these Peanut Butter Protein Bars!
Serve fresh. Do not make it too far ahead of time.
Frequently Asked Questions
Yes, this mug cake recipe is made without eggs.
This peanut butter mug cake tastes like chocolate and peanut butter!
Yes, this mug cake is gluten free. Use certified gluten free oat flour.
I do not recommend making this recipe too far ahead of time. It is best eaten fresh.
Equipment Needed
Oven Safe Ramekins: These 10 ounce ramekins are microwave and oven safe.
Mugs: These mugs are large enough in size for this recipe. Perfect for a peanut butter cake in a mug!
Check out all of my kitchen favorites!
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If you make this peanut butter mug cake recipe, I would really appreciate a review! You can find me on Instagram, Facebook, and Pinterest. Join my exclusive Facebook Group for a behind the scenes look. I would love for you to follow along! For more ideas, check out these Vegan Recipes.
Get the Recipe: Peanut Butter Mug Cake
Ingredients
- 2 tbsp oat flour
- 2 tbsp protein powder
- 2 tbsp all natural creamy peanut butter
- ¼ tsp baking powder
- 1 tbsp coconut sugar, or brown sugar
- ⅓ cup milk, dairy free or regular
- 2 tbsp dark chocolate chips
Instructions
- First, add all ingredients except for the chocolate chips to a mug or ramekin. Stir to combine.
- Microwave for 50 to 60 seconds. Remove from the microwave. If needed, microwave for an additional 10 seconds.
- Carefully remove the mug cake from the microwave with oven mitts. Immediately sprinkle the chocolate chips on top.
- Finally, serve!
Notes
- If you do not have protein powder, replace it with more oat flour.
- Use all natural creamy peanut butter made from only peanuts and salt.
- The batter will be relatively thin.
- Do not microwave too long or the cake will become rubbery.
- Immediately top with chocolate chips so they melt!
- This mug cake is best eaten immediately. I do not recommend making it ahead of time.
- Check out all of my kitchen favorites!
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