Skip to Content

Chocolate Peanut Butter Mug Cake

Chocolate Peanut Butter Mug Cake – A deliciously moist and fluffy chocolate cake that is loaded with peanut butter chips, and has a peanut butter centre. Made in the microwave in under 2 minutes!

Chocolate Peanut Butter Mug Cake

Chocolate Peanut Butter Mug Cake

I absolutely love mug cakes!

They are quick and easy to throw together, conveniently made in the microwave, and usually ready to eat in just under a couple of minutes.

They’re perfect for when you’re craving cake, but you don’t wanna put the oven on, nor bake a whole cake.

A quick fix for your sweet tooth!

This mug cake is moist and fluffy, loaded with peanut butter chips, and filled with a melting peanut butter centre. It is absolutely delicious, and bursting with chocolate and peanut butter flavour!

Looking for more microwave desserts? Check out my Nutella Mug Cake and Chocolate Chip Mug Cookie.

Chocolate Peanut Butter Mug Cake
Chocolate Peanut Butter Mug Cake

Ingredients you’ll need

Here’s a list of ingredients you’ll need to make this cake. You can find my recipe card at the bottom of this post for the complete list with their amounts.

  • Plain/all-purpose flour
  • Light brown sugar
  • Cocoa powder: I love and use Dr. Oetker Fine Dark Cocoa Powder.
  • Baking soda
  • Salt
  • Milk: You can use any type of milk here.
  • Vegetable oil: Adds moisture to the cake.
  • Vanilla extract
  • Peanut butter chips: I used Reese’s.
  • Smooth peanut butter: Just a teaspoon for the centre.
Chocolate Peanut Butter Mug Cake

How to make Chocolate Peanut Butter Mug Cake

To make this cake, grab a large microwave-safe mug and stir together the flour, sugar, cocoa powder, baking soda, and salt.

Add the milk, vegetable oil, and vanilla extract, and stir until smooth and combined.

Mix in the peanut butter chips.

Spoon a teaspoon of peanut butter into the centre of the batter – no need to push down, it will sink in as the cake cooks.

Microwave on high for 1 minute 30 seconds or until the cake is cooked in the middle. (Timing is based on my 800W microwave so your timing might vary. See my recipe notes below in the recipe card for more info.)

Enjoy warm on its own or with a scoop of ice cream!

The printable recipe card with the FULL list of ingredients and instructions can be found at the bottom of this post.

NOTE: For best results, I highly recommend using the gram measurements (with a digital scale), rather than the cup measurements.

Cup measurements are simply not accurate enough, and I cannot guarantee the best results if you use them.

Chocolate Peanut Butter Mug Cake
Chocolate Peanut Butter Mug Cake

This Chocolate Peanut Butter Mug Cake is:

  • super quick and easy to throw together
  • made in the microwave in under 2 minutes
  • loaded with peanut butter chips
  • filled with a peanut butter centre
  • rich in chocolate flavour

With just a few simple, staple ingredients you probably already have at home, you’ll have this incredibly delicious mug cake made in no time!

I recommend serving as soon as it is made, while it’s still warm, topped with a scoop of ice cream if desired.

If you try this recipe, let us know! Leave a comment, rate it, and don’t forget to tag me on Instagram and hashtag it #marshasbakingaddiction. I’d love to see!

Chocolate Peanut Butter Mug Cake

Try these cakes next!

Craving more sweet treats? Subscribe to my newsletter to receive recipe updates straight to your inbox. You can also keep up to date on FacebookPinterest, and Instagram.

Chocolate Peanut Butter Mug Cake

Chocolate Peanut Butter Mug Cake

Yield: 1 mug cake
Prep Time: 10 minutes
Cook Time: 2 minutes
Total Time: 12 minutes

A deliciously moist and fluffy chocolate cake that is loaded with peanut butter chips, and has a peanut butter centre. Made in the microwave in under 2 minutes!

Ingredients

  • 4 tablespoons (33g) plain/all-purpose flour
  • 3 tablespoons (42g) light brown sugar
  • 2 tablespoons cocoa powder
  • 1/4 teaspoon baking soda
  • 1/8 teaspoon salt
  • 6 tablespoons (85ml) milk
  • 2 tablespoons (28g) vegetable oil
  • 1/2 teaspoon vanilla extract
  • 2 tablespoons (30g) peanut butter chips
  • 1 teaspoon smooth peanut butter

Instructions

  1. In a large microwave-safe mug*, stir together the flour, sugar, cocoa powder, baking soda, and salt.
  2. Add the milk, oil, and vanilla, and stir until smooth and combined. Mix in the peanut butter chips.
  3. Spoon a teaspoon of peanut butter into the centre of the batter - no need to push down.
  4. Microwave on high for 1 minute 30 seconds or until the cake is cooked in the middle. (Timing is based on my 800W microwave so your timing might vary. See Recipe Notes below.**)
  5. Enjoy warm on its own or with a scoop of ice cream!

Notes

*You want a big enough mug that the cake batter fills up just over half way.

**All microwaves are different and can yield different results (like an overcooked mug cake). My microwave is 800W and I cooked mine on 100% power for 1 minute 30 seconds. Knowing this may help you better judge how long to cook yours for.

Microwave Watt Time Estimates:

700W - 1min 40sec / 800W - 1min 30sec / 900W - 1min 20sec / 1000W - 1min 10sec

Nutrition Information:
Yield: 1 mug cake Serving Size: 1 mug cake
Amount Per Serving: Calories: 710Total Fat: 41gSaturated Fat: 8gTrans Fat: 1gUnsaturated Fat: 32gCholesterol: 7mgSodium: 679mgCarbohydrates: 80gFiber: 5gSugar: 50gProtein: 9g

Nutrition information isn’t always accurate.

Did you make this recipe?

Tag @MarshasBakeBlog on Instagram and hashtag it #marshasbakingaddiction

Gina

Monday 24th of January 2022

This is the perfect fix for any sweet tooth! Perfect texture and can't go wrong with chocolate and pb!

Skip to Recipe