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Peanut Butter Cupcakes

My peanut butter cupcakes are carefully designed to be perfectly moist and fluffy. We'll top them off with a swirled chocolate peanut butter icing that is surprisingly easy to make!Recipe includes a how-to video!

Prep Time
40 mins
Cook Time
40 mins
Total Time
1 hr 2 mins
Servings: 24 cupcakes
Calories: 549 kcal
Course: Dessert , Baked Goods
Cuisine: American

Ingredients

Peanut Butter Cupcakes
  • 3 3 cups cake flour
  • 1 1 cup granulated sugar
  • 1 1 cup light brown sugar firmly packed
  • 1 ½ 1 ½ teaspoons baking powder
  • ½ ½ teaspoon baking soda
  • 1 1 teaspoon salt
  • 12 12 Tablespoons unsalted butter melted
  • ¼ ¼ cup Avocado, vegetable or canola oil
  • 1 1 cup creamy peanut butter
  • 3 3 large eggs room temperature preferred
  • 1 1 Tablespoon vanilla extract
  • 1 1 cup sour cream
  • ¼ ¼ cup whole milk
Peanut Butter & Chocolate Frosting
  • 1 ½ 1 ½ cup unsalted butter softened
  • 1 ½ 1 ½ cup creamy peanut butter
  • 1 ½ 1 ½ teaspoons vanilla extract
  • ½ ½ teaspoon salt
  • 4 4 cups powdered sugar
  • 1-3 1-3 Tablespoons milk
  • ½ ½ cup natural cocoa powder

Instructions

    Cup of Yum
  1. Preheat oven to 350F (175C) and line two 12-count cupcake tins with paper liners. Set aside.
  2. In a large mixing bowl, whisk together flour, sugars, baking powder, baking soda, and salt.
  3. Add melted butter and oil and use an electric mixer to stir until all flour is moistened.
  4. Stir in peanut butter.
  5. Add eggs, vanilla extract and sour cream and stir until thoroughly combined.
  6. Slowly drizzle in milk and stir until completely combined and batter is smooth and uniform.
  7. Evenly divide batter into prepared cupcake tin.
  8. Transfer to center rack of 350F (175C) oven (I only bake one tray at a time) and bake for 22-24 minutes or until a toothpick inserted in the center comes out clean or (preferably) with moist crumbs. Cupcake surfaces will crack, the cracks may still appear wet when the cupcakes are finished baking. Do not over-bake or cupcakes will be dry and crumbly.
  9. Allow cupcakes to cool in pan for 5 minutes before gently, carefully removing to a cooling rack to cool completely before frosting.
Peanut Butter Chocolate Swirled Frosting & Decorating
    Cup of Yum
  1. Combine butter, peanut butter, vanilla extract and salt and stir until smooth and creamy.
  2. Gradually add powdered sugar until completely combined. Thin frosting as needed by adding milk, one tablespoon at a time, until smooth and creamy.
  3. Measure out approximately half of the frosting into a disposable piping bag and set aside.
  4. Add cocoa powder to remaining half of frosting and stir until completely combined. If needed, thin the frosting with additional milk.
  5. Transfer chocolate frosting to another piping bag. Snip the ends off both frosting bags and place in an additional piping bag that’s been fitted with a large closed star piping tip (I use Ateco 848) together. Pipe swirled frosting onto cupcakes (note that the first bit you pipe may not be swirled but as both frostings work their way through you’ll get a nice swirl!).

Notes

  • I recommend classic creamy peanut butter for this recipe. Natural peanut butter won’t work as well and will negatively alter the texture of both the cupcake and the frosting.
  • Store in an airtight container at room temperature for up to 48 hours or in an airtight container in the refrigerator for up to 4 days.

Nutrition Information

Serving 1cupcake Calories 549kcal (27%) Carbohydrates 56g (19%) Protein 9g (18%) Fat 34g (52%) Saturated Fat 15g (75%) Polyunsaturated Fat 4g Monounsaturated Fat 12g Trans Fat 1g Cholesterol 72mg (24%) Sodium 321mg (13%) Potassium 238mg (7%) Fiber 2g (8%) Sugar 40g (80%) Vitamin A 624IU (12%) Vitamin C 0.1mg (0%) Calcium 66mg (7%) Iron 1mg (6%)

Nutrition Facts

Serving: 24cupcakes

Amount Per Serving

Calories 549

% Daily Value*

Serving 1cupcake
Calories 549kcal 27%
Carbohydrates 56g 19%
Protein 9g 18%
Fat 34g 52%
Saturated Fat 15g 75%
Polyunsaturated Fat 4g 24%
Monounsaturated Fat 12g 60%
Trans Fat 1g 50%
Cholesterol 72mg 24%
Sodium 321mg 13%
Potassium 238mg 5%
Fiber 2g 8%
Sugar 40g 80%
Vitamin A 624IU 12%
Vitamin C 0.1mg 0%
Calcium 66mg 7%
Iron 1mg 6%

* Percent Daily Values are based on a 2,000 calorie diet.