Chocolate Peanut Butter Mug Cake
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This chocolate peanut butter mug cake is what makes having a microwave worthwhile. The cake is incredibly moist every. single. time. It has the perfect ratio of chocolate to peanut butter and it’s easy to doll up with a drizzle of peanut butter and some chocolate sprinkles. You can forget the chocolate and just enjoy a peanut butter mug cake as well.

I don’t use my microwave for most things, but I can make a mean mug cake in it!
I normally make a peanut butter mug cake, but this time I decided to get a little crazy with it and throw in a little chocolate too. I have no idea why it took me so long to add cocoa powder to my mug cake, but I’m glad it *FINALLY* occurred to me.

I would love to share like a billion more mug cake recipes. They’re so easy to whip up and if they do fail, you’re not out a ton of ingredients. That’s one of my favorite parts. I also love that it only takes a minute or so to know whether the recipe isn’t any good.
I will get downright angry if I spend a morning kneading love into a loaf of bread to find that it is a rock when it comes out of the oven. That’s like four hours of my life that I lost to a loaf of rock bread. Am I being a little dramatic? Most likely, but still!

If you’re not a huge fan of mug cakes, it’s all good. You probably just need to try this chocolate peanut butter mug cake or maybe my smores mug cake. They’re life changing, I tell you.
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How to make chocolate peanut butter mug cake

Chocolate Peanut Butter Mug Cake

SAVE THIS RECIPE
Ingredients
Cake
- 2 tablespoons salted butter
- 1/4 cup creamy peanut butter
- 1/4 cup light brown sugar, packed
- 1/4 cup all-purpose flour
- 2 teaspoons unsweetened cocoa powder
- 1/4 cup whole milk
Toppings
- 1 teaspoon creamy peanut butter
- 1/2 teaspoon chocolate sprinkles
Instructions
- In a mug, add in the 2 tablespoons salted butter and 1/4 cup creamy peanut butter. Microwave for 30 seconds and stir.
- Add in the 1/4 cup light brown sugar, 1/4 cup all-purpose flour, and 2 teaspoons unsweetened cocoa powder. Stir until combined.
- Add in the 1/4 cup whole milk and stir until the batter is smooth.
- Place into the microwave for 2 minutes. If you need more time, start at 20 – 30 seconds. The more you microwave it, the dryer it will get.
- Add the 1 teaspoon creamy peanut butter into a sandwich bag. Microwave for 20 seconds and squish the peanut butter around. Cut a small corner out of the sandwich bag. Drizzle peanut butter on top of the warm mug cake.
- Sprinkle the 1/2 teaspoon chocolate sprinkles on top. Serve!
Nutrition
(Nutrition facts are an estimate and not guaranteed to be accurate. Please see a registered dietitian for special diet advice.)

What size of mug did you use. Looks amazing and who doesn’t love chocolate and peanut butter!
I just used a larger mug, I am not sure the size of it.
Super simple…super good!
Absolutely!