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Craving a sweet treat that’s quick and easy? Look no further than this Chocolate Peanut Butter Mug Cake! In just minutes, you’ll whip up a warm, gooey delight using simple ingredients you probably already have at home. Perfect for a late-night snack or a quick pick-me-up, this dessert combines rich chocolate and creamy peanut butter in one delightful bite. Let’s dive into the fun of making this tasty treat!
Why I Love This Recipe
- Quick and Easy: This mug cake can be whipped up in just 5 minutes, making it the perfect treat for a busy day or late-night craving.
- Decadent Flavor: The combination of rich chocolate and creamy peanut butter creates an indulgent flavor that feels like a dessert from a bakery.
- Customizable: Add chocolate chips or other toppings to make this mug cake your own, tailoring it to your taste preferences.
- Single Serving: Perfectly portioned for one, this recipe eliminates the temptation of leftover cake, letting you enjoy a guilt-free dessert.
Ingredients
Detailed ingredient list
– 4 tablespoons all-purpose flour
– 3 tablespoons granulated sugar
– 1 tablespoon unsweetened cocoa powder
– 1/8 teaspoon baking powder
– A pinch of salt
– 3 tablespoons milk
– 2 tablespoons creamy peanut butter
– 1 tablespoon vegetable oil
– 1/4 teaspoon vanilla extract
– Optional ingredients (chocolate chips, crushed peanuts)
When making this mug cake, you want fresh, quality ingredients. Start with all-purpose flour, which gives structure to the cake. Use 4 tablespoons. Next, grab 3 tablespoons of granulated sugar for sweetness. This will balance the chocolate and peanut butter.
Add 1 tablespoon of unsweetened cocoa powder. It brings a rich chocolate flavor. A tiny bit of baking powder, just 1/8 teaspoon, helps the cake rise. Don’t forget a pinch of salt. It enhances all the flavors.
For moisture and creaminess, you need 3 tablespoons of milk. Then, grab 2 tablespoons of creamy peanut butter. This is the star of the show! It adds a nutty taste.
Next, pour in 1 tablespoon of vegetable oil. This keeps the cake soft. A touch of vanilla extract, just 1/4 teaspoon, rounds out the flavor nicely.
If you want to jazz it up, add 1 tablespoon of chocolate chips. They make the cake extra special. For a nice crunch, consider crushed peanuts as a topping. These ingredients come together to create a simple, tasty treat that you can enjoy in just minutes!

Step-by-Step Instructions
Preparing the dry ingredients
First, grab a microwave-safe mug. Add 4 tablespoons of all-purpose flour. Next, add 3 tablespoons of granulated sugar. Then, mix in 1 tablespoon of unsweetened cocoa powder. Don’t forget 1/8 teaspoon of baking powder and a pinch of salt. Use a fork to mix these dry items well. You want a nice blend without lumps.
Mixing wet ingredients with dry ingredients
Now it’s time for the wet ingredients! Pour in 3 tablespoons of milk. Add 2 tablespoons of creamy peanut butter for that rich flavor. Then, add 1 tablespoon of vegetable oil. Finally, add 1/4 teaspoon of vanilla extract. Stir this mixture until it is smooth. Make sure there are no lumps left in the batter. If you want a chocolate surprise, fold in 1 tablespoon of chocolate chips.
Cooking the mug cake in the microwave
Place your mug in the microwave. Cook it on high for 1 minute and 10 seconds. Keep an eye on it! Microwaves vary in power, so cooking time can change. The cake should rise and look set but still soft in the center. Once it’s done, let it cool for a minute. Top it with crushed peanuts for crunch and flavor. Enjoy your delicious treat!
Tips & Tricks
Achieving the perfect mug cake texture
To get the best texture for your mug cake, mix the dry and wet ingredients well. Make sure you have a smooth batter without lumps. A smooth batter helps the cake rise evenly. If the batter is too thick, add a little more milk. This will help create a fluffy cake. Remember, a well-mixed batter is key to success!
Adjusting cooking time based on microwave wattage
Microwave power varies, so cooking time can change. Most microwaves need about 1 minute and 10 seconds. If your microwave is less powerful, start with 1 minute. Check the cake, then add more time in small increments. The cake should rise and look set but remain soft in the center. Don’t overcook it! A dry cake is not fun to eat.
Creative topping suggestions
Toppings can make your mug cake even better! Try adding crushed peanuts for a crunchy texture. You can also add whipped cream for a creamy touch. For a chocolate boost, sprinkle more chocolate chips on top. If you want a fruity twist, add some sliced bananas. Let your creativity shine with your favorite toppings!
Pro Tips
- Use a Larger Mug: Choosing a larger mug can prevent the batter from overflowing while cooking, ensuring a mess-free experience.
- Experiment with Flavors: Try adding a pinch of cinnamon or a splash of espresso for a unique flavor twist that complements the chocolate and peanut butter.
- Check for Doneness: Since microwaves vary in power, start with 1 minute and add additional time in 10-second increments until the cake is set.
- Serving Suggestions: Enhance your mug cake by serving it with a scoop of ice cream or drizzling with chocolate sauce for an indulgent treat.

Variations
Healthier alternatives
You can make this mug cake healthier with simple swaps. Use whole wheat flour instead of all-purpose flour. This change adds more fiber and nutrients. You can also cut the sugar. Try using only 2 tablespoons of sugar. It will still taste great while being a bit better for you.
Different mix-ins
Mix-ins can change your mug cake’s flavor and texture. Try adding chopped nuts for a nice crunch. Peanuts or walnuts work well. Dried fruit like raisins or cranberries can also add sweetness. You can even add a tablespoon of yogurt for creaminess.
Flavor variations
Want to switch up the taste? You can add a mashed banana for a fruity twist. This makes the cake moist and sweet. Another option is espresso powder. Just a pinch will give your cake a rich coffee flavor. These variations keep your mug cake exciting and fun!
Storage Info
Storing leftover mug cake properly
To store leftover mug cake, place it in an airtight container. This keeps it fresh for up to two days. You can also wrap it tightly in plastic wrap. If you want to keep it longer, store it in the fridge. Just remember to cool it first.
Reheating suggestions
Reheating is simple! If you want to enjoy it warm again, place the mug cake in the microwave. Heat it for about 10 to 20 seconds. Check if it is warm enough. If not, heat it in short bursts. Avoid overheating, so it doesn’t dry out.
Best practices for keeping ingredients fresh
To keep your ingredients fresh, store flour and sugar in a cool, dry place. Use airtight containers for best results. Keep the peanut butter in a cabinet or pantry. If you open a new jar, check the expiration date. For cocoa powder, store it in a dark area. Avoid moisture to keep it from clumping.
FAQs
Can I use a different type of flour?
Yes, you can use other flours. For a gluten-free option, try almond flour or oat flour. Each flour will change the texture a bit. Almond flour makes it moist, while oat flour gives a heartier feel. Just keep the same amount, four tablespoons, for best results.
How do I know when the mug cake is done?
The mug cake is done when it rises and looks set. It should be soft in the center but not wet. A good rule is to microwave for one minute and ten seconds. If it still looks wet, add ten more seconds. Watch closely to avoid overcooking.
What are the best ways to customize this recipe?
You can customize this mug cake in fun ways! Try adding nuts, like chopped walnuts or pecans, for crunch. You can also mix in some chocolate chips for extra sweetness. For flavor, add a pinch of cinnamon or even a splash of coffee to deepen the taste.
In this post, I shared a simple mug cake recipe with easy-to-follow steps. You learned about the key ingredients and how to mix them for the best results. I also offered tips for texture and creative variations. Remember, feel free to adjust recipes to suit your taste. Whether you need a quick treat or a fun project, this mug cake is perfect. Enjoy experimenting and making it your ow
Chocolate Peanut Butter Mug Cake
A quick and easy chocolate mug cake with a creamy peanut butter twist.
Prep Time 5 minutes mins
Cook Time 1 minute min
Total Time 6 minutes mins
Course Dessert
Cuisine American
Servings 1
Calories 400 kcal
- 4 tablespoons all-purpose flour
- 3 tablespoons granulated sugar
- 1 tablespoon unsweetened cocoa powder
- 1 teaspoon baking powder
- 1 pinch salt
- 3 tablespoons milk
- 2 tablespoons creamy peanut butter
- 1 tablespoon vegetable oil
- 1 teaspoon vanilla extract
- 1 tablespoon chocolate chips (optional)
- 1 tablespoon crushed peanuts (for garnish)
In a microwave-safe mug, combine the all-purpose flour, granulated sugar, cocoa powder, baking powder, and a pinch of salt. Mix thoroughly with a fork until well combined.
Add in the milk, creamy peanut butter, vegetable oil, and vanilla extract to the dry ingredients. Stir until you achieve a smooth batter, ensuring no lumps are present.
If you’re feeling extra indulgent, fold in the chocolate chips for that melty chocolate surprise.
Microwave the mug on high for 1 minute and 10 seconds. Keep an eye on it because cooking time may vary based on your microwave's power levels. The cake should rise and look set but slightly soft in the center.
Once done, let it cool for about a minute before topping it with crushed peanuts for added crunch and flavor. You can also add a dollop of whipped cream if desired!
Microwave times may vary; adjust accordingly. Optional whipped cream can be added.
Keyword chocolate, mug cake, peanut butter, quick dessert
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