Peanut Butter Mug Cake

Peanut Butter Mug Cake

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Craving a warm, rich, and satisfying dessert but don’t want to spend hours baking? A peanut butter mug cake is the perfect solution! This simple, single-serve treat comes together in minutes, using just a handful of pantry staples. Whether you need a late-night snack, a quick dessert fix, or a protein-packed treat, this mug cake delivers big flavor in no time.

Peanut Butter Mug Cake

Why You’ll Love This Recipe

  • Quick & Easy – Ready in under 5 minutes!

  • Few Ingredients – Uses basic pantry staples.

  • No Oven Required – Made entirely in the microwave.

  • Rich & Flavorful – Perfectly peanut buttery and soft.

  • Customizable – Add chocolate chips, bananas, or protein powder for variations.

Ingredients List

To make this peanut butter mug cake, you’ll need:

  • 4 tbsp all-purpose flour (or almond flour for gluten-free)

  • 2 tbsp peanut butter (creamy or crunchy)

  • 2 tbsp sugar (or honey/maple syrup for a natural option)

  • 1/4 tsp baking powder

  • 3 tbsp milk (any kind – dairy or non-dairy)

  • 1 tbsp vegetable oil or melted butter

  • 1/2 tsp vanilla extract

  • Pinch of salt

  • Chocolate chips or crushed peanuts (optional, for topping)

Equipments

  • Microwave-safe mug

  • Spoon or small whisk

  • Measuring spoons

  • Microwave

Timing

  • Prep Time: 2 minutes

  • Cook Time: 1–1.5 minutes

  • Total Time: 3–4 minutes

Step-by-Step Instructions

Step 1: Mix the Dry Ingredients

In a microwave-safe mug, combine the flour, sugar, baking powder, and salt. Stir well to mix everything evenly.

Step 2: Add the Wet Ingredients

Pour in the milk, peanut butter, vanilla extract, and oil. Mix until smooth and well combined. If desired, stir in chocolate chips or crushed peanuts for extra texture.

Step 3: Microwave the Mug Cake

Place the mug in the microwave and cook for 60–90 seconds. The cake should rise and appear set but remain slightly soft in the center. Cooking time may vary, so start with 60 seconds and add more time if needed.

Step 4: Let It Cool & Enjoy

Allow the mug cake to cool for a minute before digging in. Top with extra peanut butter, chocolate sauce, or whipped cream for an indulgent treat.

Peanut Butter Mug Cake

Variations & Flavor Ideas

Chocolate Peanut Butter Mug Cake

  • Add 1 tbsp cocoa powder to the batter for a rich chocolate twist.

Banana Peanut Butter Mug Cake

  • Mix in 2 tbsp mashed banana for a naturally sweet and moist cake.

Protein-Packed Peanut Butter Mug Cake

  • Replace 1 tbsp of flour with 1 tbsp of protein powder for a post-workout treat.

Keto Peanut Butter Mug Cake

  • Use almond flour instead of all-purpose flour and erythritol or monk fruit as a sugar substitute.

Tips for the Best Peanut Butter Mug Cake

  • Use a large mug – The batter will rise while cooking.

  • Don’t overmix – Stir until just combined for a soft texture.

  • Microwave in short intervals – Start with 60 seconds and add more time as needed.

  • Enjoy immediately – Mug cakes taste best fresh and warm.

Serving Suggestions

  • Top with extra peanut butter for a creamy finish.

  • Drizzle with honey or maple syrup for natural sweetness.

  • Add a scoop of vanilla ice cream for an indulgent treat.

  • Sprinkle crushed peanuts or chocolate chips for texture.

Nutritional Facts (Per Serving)

  • Calories: 280-350 kcal

  • Carbohydrates: 35g

  • Protein: 7g

  • Fat: 15g

  • Saturated Fat: 3g

  • Sugar: 18g

  • Fiber: 2g

  • Sodium: 180mg

(Note: Nutrition values may vary based on ingredients and substitutions used.)

FAQs

Can I Make a Mug Cake Without Eggs?

Yes! This recipe is naturally egg-free, making it even easier to prepare.

Why Is My Mug Cake Dense or Dry?

Overmixing the batter or overcooking can result in a dense cake. Stir gently and microwave in short intervals.

Can I Use Natural Peanut Butter?

Yes, but natural peanut butter is usually runnier, so you may need to adjust the flour slightly to maintain the right consistency.

Can I Store a Mug Cake for Later?

Mug cakes are best enjoyed fresh, but you can store leftovers in an airtight container for up to a day. Reheat briefly in the microwave before serving.

Can I Make This in the Oven?

Yes! Bake at 350°F (175°C) for about 10-12 minutes in an oven-safe ramekin.

Conclusion

This peanut butter mug cake is the perfect quick and easy dessert for peanut butter lovers. With just a few simple ingredients and a microwave, you can enjoy a soft, moist, and delicious cake in minutes. Try different variations, top it with your favorite add-ons, and satisfy your sweet tooth instantly.