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chocolate peanut butter mug cake

Best Chocolate Peanut Butter Mug Cake

Rufus Dewanou
A rich, gooey chocolate peanut butter mug cake with melty chocolate chips and a warm peanut butter center. It cooks in 45 seconds and is best served warm with vanilla ice cream.
5 from 1 vote
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Prep Time 4 minutes
Cook Time 1 minute
Total Time 5 minutes
Recipe Type Dessert
Cuisine American
Servings 1 serving
Calories 790 kcal

Equipment

Ingredients
  

Dry Ingredients

  • 3 tablespoons all purpose flour about 24 grams
  • 3 tablespoons granulated sugar about 38 grams
  • 1 ½ tablespoons unsweetened cocoa powder about 8 grams
  • 3 tablespoons chocolate chips about 42 grams
  • Pinch of fine salt

Wet Ingredients

  • 1 ½ tablespoons melted butter or neutral oil about 21 grams
  • 3 tablespoons milk about 45 milliliters
  • 1 teaspoon vanilla extract about 5 milliliters

Filling

  • 1 heaping tablespoon creamy peanut butter about 24 grams, or up to 2 tablespoons for an extra gooey center

Optional Topping

  • Vanilla ice cream
  • Extra chocolate chips
  • Flaky salt
  • Drizzle of peanut butter

Instructions
 

  • Add the flour, sugar, cocoa powder, chocolate chips, and salt to a microwave safe mug. Stir until evenly combined.
    chocolate peanut butter mug dry ingredients
  • Add the melted butter or oil, milk, and vanilla. Stir until a thick chocolate batter forms. Scrape the bottom and sides so there are no dry pockets.
    chocolate peanut butter mug wet ingredients
  • Scoop out 1 to 2 tablespoons of batter and set it aside.
  • Add the peanut butter to the center of the mug. Spoon the reserved batter over the peanut butter so it is mostly covered.
    chocolate peanut butter mug
  • Microwave for 45 seconds. The edges should look set and the center should still look slightly soft.
    chocolate peanut butter mug cake
  • Let the mug cake rest for 1 minute.
  • Top with vanilla ice cream and eat warm.
    chocolate peanut butter mug cake with ice cream

Notes

Use a 12 ounce mug so the batter has room to rise.
Do not overcook. Start with 45 seconds, then add 5 seconds only if the center is still completely wet.
Creamy peanut butter creates the best molten center.
Natural peanut butter works if it is well stirred first.
Butter gives the richest flavor. Neutral oil gives a slightly softer texture.
This mug cake is best eaten warm right after cooking.
For a stronger chocolate flavor, use dark chocolate chips.
For a salty sweet finish, add a tiny pinch of flaky salt on top after cooking.

Nutrition

Serving: 206gCalories: 790kcalCarbohydrates: 95gProtein: 13gFat: 45gSaturated Fat: 22gPolyunsaturated Fat: 5gMonounsaturated Fat: 15gTrans Fat: 0.7gCholesterol: 52mgSodium: 127mgPotassium: 473mgFiber: 7gSugar: 66gVitamin A: 606IUCalcium: 100mgIron: 4.1mg
Keyword 45 second mug cake, best chocolate peanut butter mug cake, chocolate peanut butter mug cake, microwave chocolate mug cake, molten peanut butter mug cake, peanut butter mug cake
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