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Peanut Butter Cupcakes are soft, tender, and loaded with peanut butter flavor. They are A perfect treat for peanut butter lovers!

Creamy peanut butter frosting makes these cupcakes irresistible. Peanut butter cupcakes are fluffy and delicious! For more peanut butter goodness try Peanut Butter Cup Cookies, Peanut Butter Chews, and Peanut Butter Oatmeal Cookies.

Peanut Butter Cupcakes on a wooden table.

A PB Lover’s Dream

This recipe will thrill peanut butter lovers everywhere. Peanut butter cupcakes with peanut butter frosting is a peanut butter lovers dream! Made from scratch with simple ingredients you already have in your pantry, these cupcakes are easy and scrumptious!

One challenge with baking with peanut butter is that it tends to make baked goods dry. I made several tweaks to this recipe to avoid that. I used oil instead of butter, brown sugar instead of regular sugar, and used cake flour.

When the cupcakes are done, they will have crinkly tops. They don’t raise up much, they stay flat (unless you overfill the liners). Perfect for adding frosting!

How to make Peanut butter cupcakes

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

WET INGREDIENTS. 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.

COMBINE. Stir in the dry ingredients just till combined. Don’t over-mix.

BAKE. 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. Cool cupcakes completely, then frost.

The Peanut Butter Frosting

The creamy peanut butter frosting makes these cupcakes purely decadent. Honestly, I could have just eaten the frosting by the spoonful. It is so good! Just mix together 5 ingredients to make this amazing frosting:

  • creamy peanut butter
  • butter
  • powdered sugar
  • vanilla
  • milk (or heavy whipping cream)

Note: Make sure that you use regular processed creamy peanut butter such as Jif. The natural peanut butter has a different consistency that will alter the texture of the cupcakes.

Unfrosted peanut butter cupcakes on a wire cooling rack.

variations + storage

Make your own buttermilk: Add 2 tbsp lemon juice OR vinegar to the bottom of a measuring cup. Add milk until you reach 1 cup. Allow the mixture to sit for 8-10 minutes before using. 

Make your own cake flour by measuring out a cup of flour, removing a tablespoon, and replacing it with a tablespoon of cornstarch. That’s what I did.

If you love peanut butter these are your treat. To make peanut butter overload cupcakes there are so many additions you can use:

  • Diced peanut butter cups to the top
  • Sprinkle on peanut butter chips
  • Add regular or mini Reeses Pieces
  • Chopped peanuts

The peanut butter cupcake pairs well with other frostings such as:

Cupcakes can be made ahead of time and stored in an airtight container.

To make them further ahead of time store the frosting and cupcakes in separate containers. 

  • STORE frosting in the fridge for up to two weeks or FREEZE for up to 3 months.
  • STORE cupcakes at room temperature for 1-2 days or FREEZE for up to 3 months.

Leftover cupcakes can be STORED in a container for 3-4 days or FREEZE up to 3 months.

Peanut butter cupcakes with peanut butter frosting on a white plate.

For more cupcake recipes, check out:

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5 from 35 votes

Peanut Butter Cupcake Recipe

By: Lil’ Luna
Peanut Butter Cupcakes are soft, tender, and loaded with peanut butter flavor. They are A perfect treat for peanut butter lovers!
Servings: 20
Prep: 15 minutes
Cook: 15 minutes
Total: 30 minutes

Ingredients 

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

Peanut Butter Frosting

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Instructions 

  • In a small bowl, whisk together the cake flour, baking powder, baking soda, and salt. Set aside.
  • 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.
  • Stir in the dry ingredients just till combined. Don't over-mix. 
  • 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.
  • Cool cupcakes completely, then frost.

Peanut Butter Frosting

  • 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

Serving: 20g, Calories: 303kcal, Carbohydrates: 39g, Protein: 5g, Fat: 15g, Saturated Fat: 4g, Trans Fat: 1g, Cholesterol: 11mg, Sodium: 166mg, Potassium: 174mg, Fiber: 1g, Sugar: 30g, Vitamin A: 130IU, Calcium: 52mg, Iron: 1mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Additional Info

Course: Dessert
Cuisine: American
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About Kara

Hi! I'm Kara from Creations by Kara, and I'm addicted to creating pretty and yummy things. I love sharing home decor ideas, DIY projects, tasty recipes, and simple tips! I hope that I am inspiring women everywhere to use their creativity to build a better life.

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Recipe Rating




37 Comments

  1. Amandine says:

    5 stars
    This recipes is a keeper !! Absolutely delicious and light cupcakes !!!

  2. Audrey Lea Manning says:

    5 stars
    This is so good that everyone asked for the recipe. My nanny doesn’t like cupcakes but she loved it so much!

  3. Gillianne says:

    I was wondering how many cupcakes can this recipe make? Im gonna bake this for my dad’s birthday

    1. Lil'Luna Team says:

      It should make about 2 dozen. Happy birthday to your dad!!

  4. Kelly says:

    5 stars
    Thank you for the recipe…love it!

  5. Lakeevia Priestley says:

    5 stars
    Made these and they are delicious!! Love this recipe good job

    1. Lil'Luna Team says:

      Thank you! I’m glad you love the cupcakes!

  6. Tanya says:

    5 stars
    Made it and loved it 🙂 Although it only makes 14 normal-sized cupcakes and the icing recipe makes double what you need.

    1. Lil'Luna Team says:

      Yay! So glad you enjoyed the cupcakes. We tend to like LOTS of frosting 😉 but that’s great feedback. Maybe worth halving the frosting recipe. Thanks for giving the cupcakes a try!

  7. Kasey says:

    5 stars
    These were excellent! I was so excited when I found the recipe and I really enjoyed making them. I had to make my own cake flour and make my own buttermilk but that was no problem at all. They were so worth it, thank you!! 🙂 Very good!

    1. Lil'Luna Team says:

      Yay! I’m so glad to hear you enjoyed the cupcakes!

  8. Kristina says:

    5 stars
    I’m a chocolate peanut butter fan so of course I love your tip to add chopped Reese’s cups. Yum!

  9. Deanna Striver says:

    5 stars
    We LOVE peanut butter over here and these cupcakes were a huge hit! I need to make more this weekend!

  10. katerina @ diethood.com says:

    5 stars
    My kids would love these!! They sound INCREDIBLE!!