Chocolate Peanut Butter Cake in a Cup Recipe

Chocolate mug cake


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  • Total: 4 mins
  • Prep: 3 mins
  • Cook: 1 mins
  • Standing time: 1 mins
  • Serving: 1 serving

Mug cakes first became popular a few years ago. The concept is simple: you mix a few ingredients in a mug or a cup and microwave it to make an instant treat. These little cakes are tender and moist, with a texture that is simply divine.

Chocolate Peanut Butter Cake in a Cup is so delicious and so simple to make; it takes just five minutes! This cake is moist and rich and has the most wonderful fudgy peanut butter flavor.

Keep the ingredients for this recipe on hand so you can make it anytime you'd like. Teach your kids how to make this recipe too (and about microwave safety) and they can have a snack when they get home from school or if they are just hungry.


  • 1/2 cup chocolate cake mix
  • 2 tablespoons peanut butter
  • 3 tablespoons milk
  • 2 tablespoons vegetable oil
  • 2 tablespoons mini chocolate chips, if desired

Steps to Make It

  1. Gather the ingredients.

  2. Spray a 1-1/2 cup (12 ounce) microwave-safe mug or cup with a nonstick baking spray containing flour. Then add the chocolate cake mix, peanut butter, milk, and mini chocolate chips to the mug or cup and mix together well with a fork until the mixture is smooth.

  3. Microwave on high for 1 minute for an 800 to 1000-watt microwave oven; 1 minute and 15 seconds for 600-watt microwave ovens and below. The batter will puff up and the surface will look like a cake. ​

  4. Remove carefully from the microwave; the cup may be hot. Put the cup on the counter and let stand on a solid surface for 1 minute, then eat. The cake will deflate a bit as it stands. The cake may have a fudgy layer on the bottom; that's okay!