Peanut Butter Mug Cake Recipe [3-Steps Make]

Peanut butter mug cake recipe is a quick microwave dessert made in minutes using peanut butter, egg yolk, flour, sugar, oil, baking powder, and chocolate chips.

This peanut butter mug cake recipe is rich, soft, warm, and incredibly satisfying. I made this because I was craving something sweet late at night while watching a cooking show where someone made a similar mug cake.

That inspired me to try my own version using peanut butter. The main specialty of this peanut butter mug cake recipe is its deep peanut butter flavor and how fast it comes together.

Now I will show step-by-step how I made this peanut butter mug cake recipe.

Peanut Butter Mug Cake Recipe

This peanut butter mug cake recipe is a delicious and comforting treat made with simple ingredients like peanut butter, flour, sugar, and chocolate chips.

It combines rich peanut butter flavor with a soft, moist texture, creating a satisfying dessert in just minutes. The use of a microwave makes it a quick option without needing to heat up the oven or use multiple dishes.

Perfect for a solo snack or a last-minute dessert, this peanut butter mug cake recipe delivers warmth and indulgence with minimal effort.

Its balance of sweetness and nutty taste makes peanut butter mug cake recipe a favorite for anyone craving something sweet and homemade.

How To Prepare Peanut Butter Mug Cake Recipe?

To ensure your peanut butter mug cake recipe comes out perfectly every time, I’ve broken down each step in a clear and simple way. No fancy tools needed just a mug, spoon, and microwave!

I’ve also included helpful tips to make the process smoother. Even with basic kitchen items, you’ll whip up a rich, satisfying treat in just minutes. Let’s get started!

Recipe Details

Preparation Time: 3 minutes

Cooking Time: 1 minute

Total Time: 4 minutes

Course: Dessert / Snack

Difficulty: Easy

Cuisine: American

Calories: Approx. 420 kcal (may vary with type of peanut butter and sugar used)

Yield: 1 mug cake

Peanut Butter Mug Cake Recipe
Peanut Butter Mug Cake Recipe

Kitchen Utensils Needed

  • 1 microwave-safe mug (8 oz or larger)
  • Measuring spoons
  • Spoon or small whisk
  • Microwave

Ingredients

  • 3 tbsp. peanut butter (creamy or crunchy)
  • 1 large egg yolk
  • 1 tbsp. granulated sugar (or brown sugar for a deeper flavor)
  • 3 tbsp. all-purpose flour
  • 1½ tbsp. neutral oil (e.g., canola or vegetable oil)
  • ¼ tsp baking powder
  • 1 tbsp. chocolate chips (optional, for extra indulgence)

Instructions

1. Start by adding the peanut butter, egg yolk, oil, and sugar to a microwave-safe mug. Mix everything together using a spoon or a small whisk until the mixture is smooth and well combined.

2. Next, add the flour and baking powder, stirring just until everything is mixed—make sure there are no dry spots of flour left. Gently fold in the chocolate chips so they’re evenly distributed throughout the batter.

3. Microwave the mug on high for 45 to 60 seconds. Check it at 45 seconds; the top should look just set. Be careful not to overcook, or the cake might turn out dry.

Why We Love This Recipe

This peanut butter mug cake recipe is loved for its rich, comforting flavor and quick satisfaction. The combination of peanut butter and chocolate creates a delightful taste that feels indulgent without being complicated.

It uses simple ingredients found in most kitchens, making it accessible whenever a sweet treat is needed. The cake’s soft, moist texture pairs perfectly with the slightly crunchy chocolate chips.

It also offers a personal-sized dessert that feels special and homemade. This recipe provides a comforting, warm experience that makes it a favorite whenever a quick, delicious snack is desired.

Why My Recipe Works

This peanut butter mug cake recipe works because it balances simple ingredients that combine quickly to create a moist, flavorful treat. The peanut butter adds richness and natural fat, keeping the cake tender.

The egg yolk provides structure and helps bind the batter, while the baking powder ensures a light, fluffy texture. Quick microwaving cooks the cake evenly without drying it out.

Adding chocolate chips adds bursts of sweetness, making each bite indulgent. Overall, the peanut butter mug cake recipe simplicity and microwave method deliver a fast, satisfying dessert every time.

Health Benefits of Peanut Butter Mug Cake

1. Good Source of Protein: Peanut butter and egg yolk both contribute high-quality protein. Protein is essential for muscle repair, hormone production, and maintaining a healthy immune system. This makes the mug cake a more satisfying dessert compared to many others.

2. Healthy Fats for Heart Health: Natural peanut butter contains monounsaturated and polyunsaturated fats, which can help lower LDL (bad) cholesterol levels when consumed in place of saturated fats. These fats also support brain function and cell health.

3. Quick Energy Boost: The blend of carbohydrates from flour and sugar, combined with fats from peanut butter and oil, offers a quick energy lift ideal for a mid-afternoon snack or post-workout treat.

4. Packed with Vitamins & Minerals: Peanut butter provides important micronutrients like magnesium (good for muscles and nerves), potassium (supports heart health), vitamin E (an antioxidant), and niacin (a B vitamin that supports metabolism and skin health).

5. Mood-Boosting Properties: The inclusion of chocolate chips and a touch of sugar can stimulate the release of serotonin and dopamine brain chemicals linked to feelings of pleasure and relaxation. This can help improve mood and reduce stress in small doses.

What Is The Best Serving Ideas

For the best serving experience, try adding a dollop of whipped cream on top to enhance the texture. A spoonful of Greek yogurt can add a tangy twist and balance the sweetness.

Sprinkle some cinnamon or cocoa powder for extra flavor. Adding crushed cookies or granola on top gives a nice crunch.

You can also serve it with a side of fresh fruit like strawberries or apple slices to add freshness and color. Enjoying the mug cake warm helps bring out the rich peanut butter taste and makes it more comforting.

Tips And Tricks For Peanut Butter Mug Cake

1. Measure ingredients carefully to maintain the right balance of wet and dry components.

2. Use a microwave-safe mug that’s not too small to avoid overflow during cooking.

3. Stir gently but thoroughly to blend ingredients without adding too much air.

4. If the batter looks too thick, add a tiny splash of milk or water to loosen it slightly.

5. Place the mug in the center of the microwave for even cooking.

6. Check the cake halfway through cooking to prevent overcooking.

7. Experiment with adding a pinch of salt to enhance the peanut butter flavor.

How Do I Store This Cake?

To store peanut butter mug cake recipe, allow it to cool completely. Cover the mug tightly with plastic wrap or transfer the cake to an airtight container.

Keep peanut butter mug cake recipe refrigerated for up to 2 days. Warm gently in the microwave for about 20-30 seconds to restore softness.

Avoid leaving the cake at room temperature for long periods to prevent it from drying out or spoiling. For the best flavor and texture, fresh consumption is recommended.

FAQs About Peanut Butter Mug Cake Recipe

Can natural peanut butter be used instead of regular peanut butter?

Natural peanut butter can be used, but because it separates and is less creamy, the texture of the cake may become a bit denser or drier. Stir the peanut butter well before measuring to help maintain moisture.

Is there an egg substitute for this recipe?

Yes, you can replace the egg yolk with alternatives like a flaxseed egg (1 tablespoon ground flaxseed mixed with 3 tablespoons water) or 2 tablespoons of applesauce. These substitutes will change the texture slightly, possibly making it a bit more crumbly.

Is this peanut butter mug cake gluten-free?

This recipe uses all-purpose flour, so it’s not gluten-free by default. However, swapping with a gluten-free flour blend designed for baking can make it safe for those with gluten intolerance without affecting flavor much.

Can this mug cake be baked in a traditional oven?

Yes, you can bake the batter in a small oven-safe dish at 350°F (175°C) for about 10 to 12 minutes. The texture might be slightly different—often a bit firmer or less moist compared to the microwave version.

How can the cake be made more moist or fudgy?

To increase moisture, adding a tablespoon of milk, yogurt, or even a little extra peanut butter can help. Be careful not to add too much liquid, or the batter may become too runny and not cook properly.

Conclusion

This peanut butter mug cake recipe was an easy process with quick success. I followed simple steps, used basic ingredients, and in just a few minutes, I had a warm and delicious treat ready.

I truly enjoyed the result and felt happy making something so tasty with little effort. I hope you understand how simple it is and feel inspired to try it yourself.

Once you make it, you’ll see how satisfying it is. I’m sure you will make peanut butter mug cake recipe soon too.

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Peanut Butter Mug Cake Recipe
Sophia

Peanut Butter Mug Cake Recipe

Quick and easy peanut butter mug cake made in minutes! Combine peanut butter, sugar, egg, flour, baking powder, milk, and vanilla in a mug. Mix well, microwave for about a minute, and enjoy a warm, fluffy treat perfect for satisfying sweet cravings instantly with minimal cleanup.
Prep Time 3 minutes
Cook Time 1 minute
Total Time 4 minutes
Servings: 1 mug cake
Course: Dessert / Snack
Cuisine: American
Calories: 420

Ingredients
  

  • 3 tbsp. peanut butter creamy or crunchy
  • 1 large egg yolk
  • 1 tbsp. granulated sugar or brown sugar for a deeper flavor
  • 3 tbsp. all-purpose flour
  • tbsp. neutral oil e.g., canola or vegetable oil
  • ¼ tsp baking powder
  • 1 tbsp. chocolate chips optional, for extra indulgence

Equipment

  • 1 microwave-safe mug (8 oz or larger)
  • Measuring spoons
  • Spoon or small whisk
  • Microwave

Method
 

  1. Start by adding the peanut butter, egg yolk, oil, and sugar to a microwave-safe mug. Mix everything together using a spoon or a small whisk until the mixture is smooth and well combined.
  2. Next, add the flour and baking powder, stirring just until everything is mixed—make sure there are no dry spots of flour left. Gently fold in the chocolate chips so they’re evenly distributed throughout the batter.
  3. Microwave the mug on high for 45 to 60 seconds. Check it at 45 seconds; the top should look just set. Be careful not to overcook, or the cake might turn out dry.
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Hi! I’m Sophia, your trusted cake guide with years of hands-on baking experience. I’m passionate about creating delicious and wholesome cakes that bring happiness to every occasion and home. Whether you’re a beginner or seasoned baker, I’m here to share tips, recipes, and inspiration to make your baking journey enjoyable and rewarding. From classic flavors to healthy twists, my goal is to help you discover the joy of baking and sharing beautiful cakes with family and friends.

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