Chocolate Peanut Butter Mug Cake is a moist chocolate cake with a molten peanut butter center that bakes up in a mug in the microwave in just one minute!

If you're a fan of chocolate + peanut butter treats, you'll also love Peanut Butter Brownies, Slow Cooker Chocolate Peanut Butter Fondue, and Homemade Peanut Butter Cups!

Today I'm sharing the perfect treat for those days when you're craving a little something sweet but there's nary a cookie or cupcake or piece of candy in the house...Chocolate Peanut Butter Mug Cake!

Ingredients

Did you know that at any given moment, you are just a few short minutes away from straight-up, legitimate CAKE?! It's true.

As long as you're stocked with a few pantry basics, like...

• Flour.
• Cocoa powder.
• Sugar.
• Baking powder.
• Vanilla.
• Chocolate chips.

...and as long as you can rustle up a few items in the fridge...

• Milk.
• Butter.
• Peanut butter.

...then you can whip up a fresh, decadent, piping-hot Chocolate Peanut Butter Mug Cake for one (or more!) in about the same amount of time it would take to scoop a bowl of ice cream!

(And, pssst...no egg required!)

How to Make a Mug Cake

Have you made a microwave mug cake before? They're kind of magical.

For this Chocolate Peanut Butter Mug Cake, you simply:

Before your very eyes, the liquid batter rises up and bakes into a rich, gooey, chocolate cake with a molten peanut butter center.

And yes, it's every bit as good as it sounds.

Making Multiple Mug Cakes

If anyone else in the house shares your sweet tooth, you can easily double, triple, or quadruple this recipe.

Simply divide the batter between the corresponding number of mugs and microwave them one at a time.

With each cake only taking one minute to bake, you'll still have dessert ready in a matter of minutes.

Ways to Enjoy It

And it's up to you how you prefer to enjoy these little babies.

You can eat your dessert straight out of the mug (which is what I typically do).

Or if you're feeling fancy and don't mind dirtying one more dish, you can spray your mug with cooking spray before adding the batter and then overturn your cake onto a plate once baked for a quick take on a molten lava cake.

Well, hello there, lovely. Don't mind if I do.

Regardless of how you choose to serve them, any fan of chocolate and peanut butter won't want to miss these to-die-for mug cakes!

After all, it's hard to beat fresh, hot, chocolate cake goodness, but if anything can, it would be a peanut buttery center.

And the fact that a Chocolate Peanut Butter Mug Cake can be ready -- from start to finish -- in under five minutes?

Well, that sounds like a pretty perfect way to satisfy a rogue sugar craving to me. 😉

More Mug Cakes

• Snickerdoodle Mug Cake
• Funfetti Mug Cake
• Lemon Poppy Seed Mug Cake
• Blueberry Muffin Mug Cake

Chocolate Peanut Butter Mug Cake

Ingredients

• ¼ cup all-purpose flour
• 2 tablespoons unsweetened cocoa powder
• 2 tablespoons sugar
• ¼ teaspoon baking powder
• ¼ cup milk, at room temperature
• 2 tablespoons butter, melted and cooled
• ¼ teaspoon pure vanilla extract
• 1 tablespoon creamy peanut butter
• 1 tablespoon mini chocolate chips

Instructions

• In a small bowl, whisk together flour, cocoa powder, sugar, and baking powder until thoroughly, completely combined with no streaks of flour or cocoa powder remaining. Blend in milk, butter, and vanilla until batter is smooth. Pour batter into a 14-ounce (or larger) microwave-safe mug with straight sides.
• Combine peanut butter and chocolate chips and dollop into the center of the mug, gently pressing down until even with the top of the batter. Microwave on high for 1 minute. Allow to cool for a couple of minutes before serving.

Notes

• A tall, cylindrical mug with straight (not angled) sides will ensure that the cake bakes evenly. I found a 14-ounce mug to be the perfect size to allow the cake to rise up while baking without overflowing. (I filled my mug to the top with water and then transferred the water to a measuring cup to determine its capacity.) If you use a smaller mug, you may want to bake the cake on top of a plate or paper towel to catch any possible overflow.
• The strength of individual microwaves can vary. The first time you make this recipe, be prepared to experiment a bit to make sure that 1 minute is the perfect length of baking time. The nice thing about this cake is that even if it is undercooked, you don't have to worry about raw eggs!
• The mini chocolate chips are optional. So is the peanut butter, for that matter. But I don't recommend skipping either. 😉
• As an alternative to serving straight out of the mug, you may instead spray the mug with non-stick cooking spray before adding the batter, and then carefully overturn the cake onto a plate once baked.

Nutrition

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