Peanut Butter Cupcake Recipe

These Peanut Butter Cupcakes are soft, tender, and loaded with peanut butter flavor.  Creamy peanut butter frosting makes them irresistible. A perfect treat for peanut butter lovers!

Course Dessert
Cuisine American
Prep Time 15 minutes
Cook Time 15 minutes
Total Time 30 minutes
Servings 20
Calories 303 kcal
Author Lil' Luna


  • 1 1/2 cups cake flour
  • 2 tsp baking powder
  • 1/2 tsp baking soda
  • 1/4 tsp salt
  • 6 Tbsp oil I used canola
  • 6 Tbsp creamy peanut butter
  • 1 cup brown sugar
  • 2 whole eggs
  • 1 cup buttermilk
  • 1 tsp vanilla

Peanut Butter Frosting

  • 2/3 cup creamy peanut butter
  • 6 Tbsp butter, softened
  • 3 cups powdered sugar
  • 1 tsp vanilla
  • 4-5 Tbsp cream or milk


  1. In a small bowl, whisk together the cake flour, baking powder, baking soda, and salt. Set aside.

  2. In a large mixing bowl, whisk the oil, peanut butter, and brown sugar till smooth. Add the eggs, buttermilk,  and vanilla and whisk till well blended.

  3. Stir in the dry ingredients just till combined. Don't over-mix. 

  4. Spoon batter into paper lined muffin pans, filling just over half full. Bake at 350° for about 15 minutes or till a toothpick comes out clean.

  5. Cool cupcakes completely, then frost.

Peanut Butter Frosting

  1. Combine peanut butter, butter, powdered sugar, vanilla, and 4 tablespoons of the cream in a mixing bowl. Beat till smooth and creamy, adding cream as needed.

Nutrition Facts
Peanut Butter Cupcake Recipe
Amount Per Serving
Calories 303 Calories from Fat 135
% Daily Value*
Fat 15g23%
Saturated Fat 4g25%
Cholesterol 11mg4%
Sodium 170mg7%
Potassium 181mg5%
Carbohydrates 39g13%
Fiber 1g4%
Sugar 30g33%
Protein 5g10%
Vitamin A 130IU3%
Calcium 56mg6%
Iron 0.5mg3%
* Percent Daily Values are based on a 2000 calorie diet.