Peanut Butter Banana Cupcake Mashup

Name: Peanut Butter Banana Cupcake Mashup
Prep time: 15 min
Cook time: 20 min
Total time: 35 min
Yield: 12 cupcakes
Ingredients: 1 cup all-purpose flour; 1/2 cup granulated sugar; 1/2 teaspoon baking powder; 1/2 teaspoon baking soda; 1/4 teaspoon salt; 1 large ripe banana, mashed; 1/2 cup creamy peanut butter; 1/2 cup milk; 1 large egg; 1 teaspoon vanilla extract; 1/2 cup creamy peanut butter; 1/4 cup unsalted butter, softened; 1 cup powdered sugar; 1-2 tablespoons milk (as needed); A pinch of salt

Highlighted under: Sweet Baking Recipes

I absolutely love the combination of peanut butter and banana, and this cupcake mashup brings these two flavors together in such a delightful way. These cupcakes are incredibly moist with a rich, nutty flavor that pairs perfectly with the sweetness of ripe bananas. They make for a fun and delicious dessert that's always a hit at gatherings or even just as a treat during the week. Join me in creating these easy-to-make cupcakes that encapsulate the taste of childhood snacks with a grown-up twist!

Created by

Anna

Last updated on 2026-02-07T18:42:27.601Z

When I first made these Peanut Butter Banana Cupcake Mashups, I had no idea they would become a staple in my baking rotation. The key is using super ripe bananas to amp up the natural sweetness and moisture, which contrasts beautifully with the creamy peanut butter flavor. Each bite is a delightful surprise!

What really impressed me was how the ice cream-like texture from the mashed bananas made the cupcakes incredibly fluffy. I recommend adding a pinch of salt to the peanut butter frosting for a balanced contrast to the sweetness, enhancing the flavor explosion in each cupcake even further.

Why You Will Love This Recipe
The creamy blend of peanut butter and banana is utterly satisfying
Soft, fluffy texture that keeps the cupcakes moist and delicious
Easy to make, perfect for impromptu gatherings or sweet cravings

Mastering the Cupcake Batter

When creating the batter for these Peanut Butter Banana Cupcakes, it's essential to incorporate the wet and dry ingredients with care. Overmixing can lead to dense cupcakes rather than the light, fluffy texture we're aiming for. Stir gently until the flour is just blended in; small lumps are perfectly acceptable. This technique ensures that your cupcakes rise beautifully and maintain a moist interior, showcasing that heavenly combination of peanut butter and banana.

Using ripe bananas is key to maximizing flavor and sweetness in this recipe. Opt for bananas with plenty of brown spots, as they yield a richer taste. If you don't have ripe bananas on hand, you can accelerate the ripening process by baking them in their skins at 300°F (149°C) for about 15-20 minutes. Once they're cool, mash them and incorporate them into your batter for a delightful burst of banana goodness.

Frosting Tips for Success

Achieving the right consistency for your peanut butter frosting is crucial for spreading and flavor balance. Start with softened butter to ensure it combines smoothly with the peanut butter. If your frosting is too thick, slowly add milk, one tablespoon at a time, until it reaches a creamy, spreadable texture. Keep in mind that a pinch of salt can elevate the sweetness and nutty flavor, making the frosting irresistible.

If you're looking to modify the frosting, consider adding a touch of powdered cocoa for a delightful chocolate-peanut butter twist. Alternatively, for a healthier version, you can substitute half of the powdered sugar with mashed avocado—this will give you a creamy texture without compromising the flavor. Just be sure to consume the cupcakes within a couple of days, as the avocado may alter the frosting's freshness.

Ingredients for Peanut Butter Banana Cupcake Mashup

For the Cupcakes

1 cup all-purpose flour
1/2 cup granulated sugar
1/2 teaspoon baking powder
1/2 teaspoon baking soda
1/4 teaspoon salt
1 large ripe banana, mashed
1/2 cup creamy peanut butter
1/2 cup milk
1 large egg
1 teaspoon vanilla extract

For the Peanut Butter Frosting

1/2 cup creamy peanut butter
1/4 cup unsalted butter, softened
1 cup powdered sugar
1-2 tablespoons milk (as needed)
A pinch of salt

Make sure to measure your ingredients accurately for the best results.

Instructions

Preheat the Oven

Preheat your oven to 350°F (175°C) and line a cupcake tin with paper liners.

Mix Dry Ingredients

In a bowl, whisk together the flour, sugar, baking powder, baking soda, and salt.

Combine Wet Ingredients

In another bowl, combine the mashed banana, peanut butter, milk, egg, and vanilla extract until smooth.

Combine Mixtures

Pour the wet ingredients into the dry ingredients and stir until just combined; do not overmix.

Bake

Fill each cupcake liner about 2/3 full with batter. Bake for 20 minutes or until a toothpick inserted comes out clean.

Make Frosting

While the cupcakes cool, beat together the peanut butter and softened butter. Gradually add powdered sugar and milk until smooth and creamy.

Frost the Cupcakes

Once the cupcakes have cooled completely, frost with the peanut butter frosting and sprinkle with a pinch of salt if desired.

Enjoy your delicious Peanut Butter Banana Cupcake Mashups!

Pro Tips

Using extra ripe bananas will provide the best flavor and moisture. Don’t be shy with the peanut butter frosting for that perfect indulgent touch!

Storage and Make-Ahead Tips

These cupcakes can be made ahead of time and stored for up to three days in an airtight container at room temperature. If you plan to frost them later, it's best to keep the unfrosted cupcakes for optimal freshness. If you want to extend their shelf life, consider freezing the unfrosted cupcakes for up to three months. When you're ready to enjoy them, simply thaw at room temperature and frost just before serving.

For those planning a gathering, you can prepare the frosting in advance, too. It can be stored in the refrigerator for up to a week; just give it a good stir before using. However, avoid frosted cupcakes being stored in the fridge, as the cold can affect their texture and make them less enjoyable.

Variations and Serving Suggestions

Feel free to get creative with add-ins! Chopped nuts, such as walnuts or pecans, can provide a delightful crunch that complements the moistness of the cupcakes. You might also incorporate mini chocolate chips for an indulgent touch. Just remember to gently fold them in along with the wet ingredients to avoid overmixing.

These cupcakes are versatile and can be served in various ways. For an elegant presentation, consider topping them with crushed peanuts or drizzling melted chocolate over the frosting. Pair them with a scoop of vanilla ice cream for an extra special treat, or enjoy them alongside a hot cup of coffee for a delightful afternoon pick-me-up.

Questions About Recipes

→ Can I use natural peanut butter?

Yes, natural peanut butter works great, but ensure it's well-stirred before use.

→ How should I store the cupcakes?

Store them in an airtight container at room temperature for up to 3 days, or in the fridge for up to a week.

→ Can I freeze these cupcakes?

Absolutely! You can freeze the unfrosted cupcakes for up to 3 months. Just thaw them before frosting.

→ What can I substitute for the egg?

You can use a flax egg or applesauce as a substitute for the egg if you're looking for a vegan option.