The best banana cake recipe is a moist, tender 9-by-13-inch dessert made with very ripe bananas, sour cream, and a rich cream-cheese frosting. It takes about 15–20 minutes to prepare, bakes in 25–30 minutes, and yields approximately 12–16 servings, making it an excellent choice for family gatherings, potlucks, birthdays, and casual weekend baking.
Every bite combines deep natural banana flavor with a soft, delicate crumb and a cool, tangy frosting. The secret is using heavily speckled bananas and mixing the batter only until the flour disappears, which keeps this fruit cake plush instead of dense.
Jump to RecipeWhy You’ll Love This Recipe
This banana cake has the comforting flavor of homemade banana bread but a lighter, softer texture that feels right at home on a dessert table. Sour cream contributes moisture and a gentle tang, while the cream-cheese frosting adds a smooth, lightly sweet contrast to the fruit-forward cake.
The 9-by-13-inch format is especially practical. You can bake one generous layer, frost it right in the pan, and cut it into 12–16 neat pieces without worrying about stacking or decorating multiple rounds.
If you enjoy baking with seasonal fruit, our apple cake recipe is another cozy option with a tender crumb and warm fruit flavor.
Ingredients You’ll Need
Gather the ingredients before starting so the batter comes together quickly. Softened butter, cream cheese, and eggs blend more evenly, so allow them to sit at room temperature before mixing.
- Very ripe bananas: Use 1 cup of mashed banana, usually 2–3 medium fruits. Brown or heavily speckled skins signal concentrated sweetness and a fuller banana aroma.
- Sour cream: One cup gives the cake a moist crumb and balances the sweetness of the sugar and frosting.
- Butter and sugar: Creaming 1/2 cup of softened unsalted butter with 1 1/2 cups of granulated sugar helps create a tender, airy batter.
- Flour, baking soda, and salt: These form the structure and provide the lift and seasoning the cake needs.
- Cream-cheese frosting: Softened cream cheese, butter, confectioners’ sugar, and vanilla create a smooth topping with a pleasant tang.
Measure the mashed bananas after peeling and mashing. If your bananas are unusually large, mash enough to reach about 1 cup rather than adding an unchecked amount, since excess fruit can change the cake’s texture.
How to Make It Step-by-Step
Step 1: Heat the oven to 350°F (175°C) and grease a 9-by-13-inch baking pan. Greasing the bottom and sides helps the cake release cleanly and makes serving easier.
Step 2: Whisk the all-purpose flour, baking soda, and salt in a medium bowl. A quick, thorough whisk prevents pockets of baking soda or salt from concentrating in one part of the cake.
Step 3: Place the softened butter and granulated sugar in a large bowl and beat until light and fluffy. Add the eggs one at a time, mixing after each addition, then beat in the vanilla extract.
Step 4: Stir in the sour cream and mashed bananas until the mixture looks evenly blended. Scrape the sides and bottom of the bowl so the rich banana mixture is consistent throughout.
Step 5: Add the whisked dry ingredients to the wet ingredients. Mix only until combined, because prolonged mixing develops gluten and can leave the cake dense or chewy instead of tender.
Step 6: Spread the batter into the greased pan and smooth it into an even layer. Bake for 25–30 minutes, checking near the end of the baking time with a toothpick inserted in the center.
Step 7: Remove the cake when the center is set and the toothpick comes out clean or with a few moist crumbs. Let it cool completely, which generally takes 30–60 minutes depending on the room temperature and pan.
Step 8: Beat the softened cream cheese and butter until completely smooth. Gradually add the confectioners’ sugar, beat until creamy, mix in the vanilla, and spread the frosting over the cooled cake.
Pro Tips for a Moist Banana Cake
The bananas make the biggest difference in this recipe. Choose fruit with heavily speckled or mostly brown skins; these bananas are softer, sweeter, and more aromatic than firm yellow ones.
For the best texture, avoid adding extra flour while mixing and resist the temptation to beat the batter until perfectly glossy. Once the dry ingredients are incorporated, a few quick turns with a spatula are enough.
- Use softened butter rather than melted butter for the creaming step.
- Keep the oven fully preheated before the pan goes in.
- Check the center with a toothpick at 25 minutes, since ovens vary.
- Spread the batter evenly so the edges and center finish at the same time.
- Cool the cake fully before adding frosting.
For another banana dessert with a straightforward approach, you can also try this easy banana cake when you want a simple fruit-filled bake.
Frosting, Serving, and Presentation
The frosting should be smooth enough to spread but thick enough to stay in place. Add the confectioners’ sugar gradually so it blends without creating a cloud of powder, then spread it across the cooled cake with an offset spatula or the back of a spoon.
Serve the cake in tidy squares for a party, or cut larger pieces for an afternoon treat. A few thin banana slices can provide a pretty finishing touch just before serving, although they are best added at the last moment because fresh banana can darken.
The cake is delicious chilled, but allowing a slice to sit briefly at room temperature softens the frosting and brings out the banana flavor. It pairs beautifully with coffee, black tea, or a cold glass of milk.
Storage and Make-Ahead Advice
Because the topping contains cream cheese, cover the frosted cake and refrigerate it. Keep it chilled until serving, and use a sharp knife for clean cuts through the soft frosting and tender crumb.
You can bake the cake ahead and frost it once it has cooled completely. The finished dessert is convenient for gatherings because the pan can remain covered in the refrigerator until you are ready to portion and serve it.
If you are planning a dessert spread, our tres leches cake guide offers a different celebration-worthy direction, with a richly soaked texture that contrasts nicely with this fluffy banana cake.
Best Banana Cake Recipe
Ingredients
Method
- Heat the oven to 350°F (175°C) and grease a 9-by-13-inch baking pan. Set the pan aside while you prepare the batter.
- Whisk the flour, baking soda, and salt together in a medium bowl. This distributes the leavening and seasoning evenly before they are added to the wet ingredients.
- In a separate large bowl, cream the softened butter and granulated sugar until light and fluffy. Beat in the eggs one at a time, then mix in the vanilla extract.
- Stir the sour cream and mashed very ripe bananas into the butter mixture until evenly combined. The batter will be thick, fragrant, and generously moist.
- Add the dry ingredients to the wet mixture and mix just until combined. Stop as soon as no obvious streaks of flour remain, since overmixing can make the finished cake dense or chewy.
- Spread the batter evenly in the prepared pan and smooth the surface. Bake for 25–30 minutes, until the center is set and a toothpick comes out clean or with a few moist crumbs.
- Cool the cake completely before frosting, allowing 30–60 minutes for the pan to lose its heat. Frosting a warm cake can cause the cream cheese mixture to soften and slide.
- For the frosting, beat the softened cream cheese and butter until smooth. Gradually beat in the confectioners’ sugar, add the vanilla, and spread the finished frosting over the cooled cake.
Notes
Final Thoughts
This best banana cake recipe is a dependable way to turn very ripe bananas into a soft, flavorful dessert with minimal fuss. The sour cream keeps every bite moist, while the tangy cream-cheese frosting makes the cake feel special enough for birthdays and holidays.
Use the ripest bananas you have, measure the mashed fruit carefully, and mix gently once the flour is added. After a short bake and a full cooling period, you will have a generous pan of homemade banana cake ready to share.
