If you’re craving a quick, indulgent treat that feels like a warm hug in dessert form, this Chocolate Peanut Butter Mug Cake Recipe is exactly what you need. It’s a moist, rich, and wonderfully chocolatey cake with the irresistible creaminess of peanut butter, all whipped up in a single mug with minimal effort. This recipe transforms pantry staples into a cozy, satisfying dessert that’s ready in under two minutes—perfect for those moments when you want something sweet, comforting, and fuss-free.

Ingredients You’ll Need
What’s truly delightful about this recipe is how straightforward and accessible the ingredients are. Each one plays a crucial role in building that perfect balance of texture, sweetness, and flavor that makes this mug cake unforgettable.
- Flour: Provides the structure and gives the cake its soft, fluffy body.
- Cocoa powder: Adds deep chocolate flavor and a rich color that makes the cake truly decadent.
- Sugar: Sweetens the cake perfectly without overpowering the other flavors.
- Milk: Moistens the batter, helping to create a tender and smooth crumb.
- Peanut butter: Brings creamy richness and a delicious nutty contrast that pairs beautifully with chocolate.
How to Make Chocolate Peanut Butter Mug Cake Recipe
Step 1: Gather Your Ingredients
Before you start, make sure you have all your ingredients at hand. This helps the process go smoothly and ensures you don’t miss a beat. Use a microwave-safe mug to keep things safe and easy.
Step 2: Mix Dry Ingredients
Combine the flour, cocoa powder, and sugar directly in your mug. Stir them together thoroughly with a small fork or spoon to evenly distribute the cocoa and sugar, ensuring the cake will bake uniformly and taste balanced.
Step 3: Add Wet Ingredients
Next, stir in the milk followed by a generous spoonful of peanut butter. Mixing the peanut butter in with the liquids lets it fold into the batter just right, creating little pockets of nutty goodness throughout the cake.
Step 4: Microwave Your Mug Cake
Pop your mug into the microwave and cook for 60 to 90 seconds. The timing depends on the power of your microwave, so start checking at 60 seconds to avoid overcooking. The cake should rise beautifully and be slightly firm to the touch when done.
Step 5: Cool and Enjoy
Let the mug cake cool for a minute or two before digging in. This short wait allows it to settle and become even more luscious, making every spoonful melt in your mouth.
How to Serve Chocolate Peanut Butter Mug Cake Recipe
Garnishes
Topping your mug cake takes it to the next level. Consider adding a dollop of whipped cream, a drizzle of warm chocolate sauce, or a sprinkle of crushed peanuts for extra texture and flavor that highlight the chocolate and peanut butter duo.
Side Dishes
While this mug cake is a star on its own, pairing it with a scoop of vanilla ice cream or fresh berries adds a refreshing contrast. The creamy ice cream complements the warm cake perfectly, while berries provide a subtle tartness that cuts through the richness.
Creative Ways to Present
Serve your mug cake in colorful mugs to match the mood or add edible flowers on top for a whimsical touch. You can also try layering peanut butter between two cooking intervals to create a gooey center that’s a delightful surprise with every bite.
Make Ahead and Storage
Storing Leftovers
If you happen to have any leftovers—which is rare—they can be covered with plastic wrap and stored in the refrigerator for up to 2 days. Keep in mind the texture may become slightly denser after chilling.
Freezing
Since this mug cake is made fresh and best enjoyed hot, freezing is not ideal because it can affect the cake’s moistness and texture. It’s always best to make it fresh to enjoy the full experience.
Reheating
To reheat, simply microwave the cake for about 20 to 30 seconds until warmed through. Avoid overheating, as the peanut butter can separate and change the texture.
FAQs
Can I use almond milk or other non-dairy milk instead of regular milk?
Absolutely! Non-dairy milk like almond or oat milk works just as well and keeps the recipe dairy-free without compromising the moistness or flavor of the mug cake.
What if I don’t have cocoa powder? Can I use chocolate chips instead?
Cocoa powder is key for that rich, intense chocolate flavor and smooth texture. Chocolate chips melt differently, so using them won’t create the same cake batter consistency. It’s best to stick with cocoa powder for this recipe.
Is it possible to make the mug cake vegan?
Yes, just swap regular milk for plant-based milk and use a vegan peanut butter brand. You might also test a flax egg or applesauce if you want to experiment with adding moisture and binding, though this recipe usually doesn’t require it.
Can I add extra mix-ins like nuts or chocolate chips?
Definitely! Adding chopped nuts or chocolate chips makes this recipe even more exciting. Just fold them in with the wet ingredients before microwaving for an extra burst of texture and flavor.
How do I know when the mug cake is done?
Look for a risen cake that’s firm on top but still moist inside. If you can gently touch the surface and it springs back, it’s ready. Start with 60 seconds in your microwave and add extra time in 10-second bursts if needed.
Final Thoughts
If you’re on the lookout for a quick dessert fix that doesn’t skimp on flavor or comfort, this Chocolate Peanut Butter Mug Cake Recipe is a total game changer. It’s perfect for solo indulgence or sharing a cozy moment with someone special. Grab your mug, mix up the ingredients, and enjoy a warm, chocolatey hug any time you want—it’s comfort food at its finest!
Print
Chocolate Peanut Butter Mug Cake Recipe
- Prep Time: 5 minutes
- Cook Time: 1 – 1.5 minutes
- Total Time: 6 – 7 minutes
- Yield: 1 serving
- Category: Dessert
- Method: Microwaving
- Cuisine: American
Description
A quick and easy Chocolate Peanut Butter Mug Cake recipe that you can prepare in just minutes. Perfect for satisfying your sweet tooth with a rich, moist cake featuring the classic combination of chocolate and peanut butter, all made right in your mug and microwaved for convenience.
Ingredients
Ingredients
- 4 tablespoons all-purpose flour
- 1 tablespoon unsweetened cocoa powder
- 2 tablespoons granulated sugar
- 3 tablespoons milk
- 1 tablespoon peanut butter
Instructions
- Combine dry ingredients: In a microwave-safe mug, add the flour, cocoa powder, and sugar. Stir together thoroughly to evenly distribute the cocoa and sugar throughout the flour.
- Add wet ingredients: Pour in the milk and add the peanut butter. Mix all the ingredients in the mug well, ensuring the batter is smooth and the peanut butter is fully incorporated.
- Microwave the cake: Place the mug in the microwave and cook on high for 60 to 90 seconds. The cake should rise and become firm but still moist. Cooking time may vary slightly depending on your microwave’s power.
- Cool and serve: Let the mug cake cool for a minute or two before eating, as it will be very hot. Enjoy straight from the mug or transfer to a plate if desired.
Notes
- Microwave ovens vary, so adjust cooking time between 60 and 90 seconds as needed.
- You can substitute milk with any plant-based milk for a dairy-free option.
- For extra flavor, consider adding a pinch of salt or a few chocolate chips to the batter before microwaving.
- This recipe is best enjoyed immediately for a warm, soft texture.

