Peanut Butter-Chocolate Mug Cake

This super-fast peanut butter-chocolate mug cake is a great way to indulge your sweet tooth. The cake is tender and moist, with a hint of peanut butter. Enjoy this easy mug cake plain or topped with peanuts, chocolate chips or a sprinkle of coarse sea salt.

a recipe photo of the Peanut Butter-Chocolate Mug Cake in a mug
Photo: Photographer: Jen Causey, Food Stylist: Chelsea Zimmer
Active Time:
10 mins
Total Time:
10 mins
Nutrition Profile:


  • 2 tablespoons whole-wheat pastry flour

  • 1 tablespoon cocoa powder

  • 1 tablespoon light brown sugar

  • teaspoon baking soda

  • Pinch of salt

  • 1 tablespoon low-fat milk

  • 1 tablespoon water

  • 2 teaspoons canola oil

  • 2 teaspoons crunchy natural peanut butter

  • teaspoon vanilla extract

  • Unsalted roasted peanuts, bittersweet chocolate chips and/or coarse sea salt (optional)


  1. Coat a 12- to 16-ounce microwaveable mug with cooking spray.

  2. Whisk flour, cocoa, brown sugar, baking soda and salt together in a small bowl. Add milk, water, oil, peanut butter and vanilla; stir until smooth.

  3. Pour the mixture into the prepared mug. Sprinkle the top with peanuts, chocolate chips and/or sea salt, if desired. Microwave on High until the cake doubles in size, 30 to 45 seconds. Serve immediately.

Nutrition Facts (per serving)

315 Calories
19g Fat
31g Carbs
7g Protein
Nutrition Facts
Servings Per Recipe 1
Serving Size 1 mug
Calories 315
% Daily Value *
Total Carbohydrate 31g 11%
Dietary Fiber 5g 18%
Total Sugars 15g
Added Sugars 13g 26%
Protein 7g 14%
Total Fat 19g 24%
Saturated Fat 3g 15%
Cholesterol 1mg 0%
Vitamin A 30IU 1%
Vitamin D 7IU 2%
Vitamin E 1mg 9%
Folate 3mcg 1%
Vitamin K 7mcg 6%
Sodium 360mg 16%
Calcium 44mg 3%
Iron 2mg 11%
Magnesium 51mg 12%
Potassium 178mg 4%
Zinc 1mg 9%
Omega 3 1g

Nutrition information is calculated by a registered dietitian using an ingredient database but should be considered an estimate.

* Daily Values (DVs) are the recommended amounts of nutrients to consume each day. Percent Daily Value (%DV) found on nutrition labels tells you how much a serving of a particular food or recipe contributes to each of those total recommended amounts. Per the Food and Drug Administration (FDA), the daily value is based on a standard 2,000 calorie diet. Depending on your calorie needs or if you have a health condition, you may need more or less of particular nutrients. (For example, it’s recommended that people following a heart-healthy diet eat less sodium on a daily basis compared to those following a standard diet.)

(-) Information is not currently available for this nutrient. If you are following a special diet for medical reasons, be sure to consult with your primary care provider or a registered dietitian to better understand your personal nutrition needs.

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