If you’re on the hunt for a delightful dessert that marries the rich, comforting flavors of banana with the creamy goodness of peanut butter, then look no further! This Easy Banana Cake with Peanut Butter Frosting is the perfect treat for any occasion. Whether you’re celebrating a birthday, hosting a potluck, or simply satisfying your sweet tooth, this cake is sure to impress. It’s moist, fluffy, and topped with a luscious peanut butter frosting that will leave you craving more. Let’s dive into the details of how to create this amazing cake!
Why I Love This Recipe

This Easy Banana Cake with Peanut Butter Frosting is a personal favorite for several reasons. First and foremost, it’s an excellent way to use up those overripe bananas sitting on your countertop. Not only does it prevent food waste, but it also infuses the cake with natural sweetness and moisture. The combination of banana and peanut butter is simply irresistible, creating a flavor profile that is both nostalgic and comforting. Plus, it’s an easy recipe that doesn’t require any fancy techniques, making it accessible for bakers of all skill levels.
What Goes Into Easy Banana Cake with Peanut Butter Frosting
To whip up this delicious cake, you’ll need the following ingredients:
- 2 cups all-purpose flour – This forms the base of your cake.
- 1 teaspoon baking soda – This helps the cake rise and become fluffy.
- 1/4 teaspoon salt – A pinch of salt enhances the overall flavor of the cake.
- 1/2 cup unsalted butter at room temperature – For a rich, buttery flavor.
- 1 1/2 cups granulated sugar – Sweetness to balance the bananas.
- 2 large eggs – Binds the ingredients together and adds moisture.
- 1 cup plain Greek yogurt – Keeps the cake moist and adds a slight tang.
- 1 teaspoon vanilla extract – For a warm, aromatic flavor.
- 3 ripe bananas, peeled and mashed (to equal 1 cup) – The star ingredient of the cake.
For the frosting, you’ll require:
- 1/2 cup unsalted butter at room temperature – Adds creaminess to the frosting.
- 1/2 cup creamy peanut butter – Imparts that delicious peanut butter flavor.
- 3 cups sifted powdered sugar – Sweetens and thickens the frosting.
- 1/3 cup milk – To achieve the perfect spreadable consistency.
- 1 teaspoon vanilla extract – Enhances the flavor of the frosting.
Tools & Equipment Needed
Before you start baking, gather the following tools:
- Mixing bowls – For combining your ingredients.
- Measuring cups and spoons – Precision is key in baking.
- Electric mixer – For effortlessly mixing the batter and frosting.
- Rubber spatula – Perfect for scraping down the sides of the bowl.
- 9×13 inch baking pan – Ideal for baking the cake.
- Cooling rack – To cool the cake properly before frosting.
Easy Banana Cake with Peanut Butter Frosting: From Prep to Plate

Now, let’s walk through the steps to create your Easy Banana Cake with Peanut Butter Frosting.
Step 1: Preheat the Oven
Preheat your oven to 350°F (175°C). This ensures your cake bakes evenly.
Step 2: Prepare Your Baking Pan
Grease and flour your 9×13 inch baking pan. This will prevent the cake from sticking.
Step 3: Mix the Dry Ingredients
In a medium bowl, whisk together the all-purpose flour, baking soda, and salt. Set aside.
Step 4: Cream the Butter and Sugar
In a large mixing bowl, beat together the unsalted butter and granulated sugar until light and fluffy. This should take about 3-4 minutes with an electric mixer.
Step 5: Add Eggs and Bananas
Add the eggs one at a time, mixing well after each addition. Then, stir in the mashed bananas and vanilla extract until fully incorporated.
Step 6: Incorporate the Yogurt
Mix in the plain Greek yogurt until smooth. This will add moisture to the cake.
Step 7: Combine Wet and Dry Ingredients
Gradually add the dry ingredients to the wet mixture, mixing until just combined. Be careful not to overmix, as this can lead to a dense cake.
Step 8: Bake the Cake
Pour the batter into your prepared baking pan, spreading it evenly. Bake in the preheated oven for 25-30 minutes, or until a toothpick inserted into the center comes out clean.
Step 9: Cool the Cake
Once baked, remove the cake from the oven and allow it to cool in the pan for about 10 minutes before transferring it to a cooling rack to cool completely.
Step 10: Make the Peanut Butter Frosting
While the cake is cooling, prepare the frosting. In a mixing bowl, beat together the softened unsalted butter and creamy peanut butter until smooth. Gradually add the sifted powdered sugar and milk, mixing until you reach your desired consistency. Finally, stir in the vanilla extract.
Step 11: Frost the Cake
Once the cake has completely cooled, spread the peanut butter frosting evenly over the top using a spatula. You can garnish with chopped peanuts or banana slices if desired.
Step 12: Slice and Serve
Cut the cake into squares and serve. Enjoy the delightful combination of banana and peanut butter with every bite!
Dietary Customizations
If you’re looking to customize this Easy Banana Cake with Peanut Butter Frosting to fit dietary needs, consider the following options:
- Gluten-Free: Substitute the all-purpose flour with a gluten-free flour blend.
- Dairy-Free: Use dairy-free butter and yogurt alternatives.
- Reduced Sugar: Substitute granulated sugar with coconut sugar or a sugar alternative.
- Vegan: Replace eggs with flax eggs and use plant-based yogurt.
Chef’s Rationale
The beauty of this Easy Banana Cake with Peanut Butter Frosting lies in its simplicity. The ripe bananas not only add natural sweetness but also keep the cake moist and tender. The addition of Greek yogurt enhances this moisture while providing a slight tang that balances the sweetness of the frosting. Peanut butter complements bananas perfectly, creating a familiar flavor combination that many adore. This cake is both comforting and indulgent, making it a crowd-pleaser whether you’re serving it at a gathering or enjoying it on a cozy night in.
Storing Tips & Timelines
To keep your Easy Banana Cake with Peanut Butter Frosting fresh:
- Room Temperature: The cake can be stored in an airtight container at room temperature for up to 3 days.
- Refrigerator: For longer storage, place the cake in the fridge where it will last for up to a week.
- Freezing: You can also freeze the unfrosted cake for up to 3 months. Just wrap it tightly in plastic wrap and aluminum foil.
Common Questions
Can I use frozen bananas for this recipe?
Yes! Just make sure to thaw and drain any excess liquid before mashing them.
Why is my cake dense?
A dense cake can result from overmixing the batter or not using enough leavening agent. Be sure to measure accurately and mix just until combined.
Can I make this cake without eggs?
Absolutely! You can replace each egg with a flax egg (1 tablespoon of flaxseed meal mixed with 2.5 tablespoons of water) or a commercial egg replacer.
What can I serve with this cake?
This cake pairs wonderfully with a scoop of vanilla ice cream or a dollop of whipped cream for an extra treat!
Explore More
If you enjoyed this recipe, check out more delicious treats:
- Peanut Butter White Chocolate Chip Banana Bread
- Easy Chocolate Chip Cookies
- Creamy Lemon Mousse
- Classic Vanilla Cupcakes
Serve & Enjoy
Now that you’ve mastered the art of making Easy Banana Cake with Peanut Butter Frosting, it’s time to dig in and savor every bite! This cake is perfect for sharing with friends and family, or you can keep it all to yourself—no judgment here! With its moist banana base and creamy peanut butter frosting, it’s bound to become a go-to recipe in your baking repertoire. Happy baking!
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Easy Banana Cake with Peanut Butter Frosting
Ingredients
For the Cake:
- 2 cups all-purpose flour
- 1 teaspoon baking soda
- 1/4 teaspoon salt
- 1/2 cup unsalted butter at room temperature
- 1 1/2 cups granulated sugar
- 2 large eggs
- 1 cup plain Greek yogurt
- 1 teaspoon vanilla extract
For the Frosting:
- 1/2 cup unsalted butter at room temperature
- 1/2 cup creamy peanut butter
- 3 cups sifted powdered sugar
- 1/3 cup milk
- 1 teaspoon vanilla extract
Instructions
Directions:
- Step 1: Preheat your oven to 350°F (175°C). This ensures your cake bakes evenly.
- Step 2: Grease and flour your 9x13 inch baking pan. This will prevent the cake from sticking.
- Step 3: In a medium bowl, whisk together the all-purpose flour, baking soda, and salt. Set aside.
- Step 4: In a large mixing bowl, beat together the unsalted butter and granulated sugar until light and fluffy. This should take about 3-4 minutes with an electric mixer.
- Step 5: Add the eggs one at a time, mixing well after each addition. Then, stir in the mashed bananas and vanilla extract until fully incorporated.
- Step 6: Mix in the plain Greek yogurt until smooth. This will add moisture to the cake.
- Step 7: Gradually add the dry ingredients to the wet mixture, mixing until just combined. Be careful not to overmix, as this can lead to a dense cake.
- Step 8: Pour the batter into your prepared baking pan, spreading it evenly. Bake in the preheated oven for 25-30 minutes, or until a toothpick inserted into the center comes out clean.
- Step 9: Once baked, remove the cake from the oven and allow it to cool in the pan for about 10 minutes before transferring it to a cooling rack to cool completely.
- Step 10: While the cake is cooling, prepare the frosting. In a mixing bowl, beat together the softened unsalted butter and creamy peanut butter until smooth. Gradually add the sifted powdered sugar and milk, mixing until you reach your desired consistency. Finally, stir in the vanilla extract.
- Step 11: Once the cake has completely cooled, spread the peanut butter frosting evenly over the top using a spatula. You can garnish with chopped peanuts or banana slices if desired.
- Step 12: Cut the cake into squares and serve. Enjoy the delightful combination of banana and peanut butter with every bite!
Equipment
- Mixing Bowls
- Measuring cups and spoons
- Electric Mixer
- Rubber Spatula
- 9x13-inch Baking Pan
- Cooling rack
Notes
- Store the cake in an airtight container at room temperature for up to 3 days.
- For longer storage, refrigerate for up to a week.
- Freeze the unfrosted cake for up to 3 months.
