Table of Contents
Those blackened, overripe bananas sitting on your counter are not destined for the trash; they are the secret to the most moist, flavor-packed banana cake you will ever bake. This Best Banana Cake recipe goes far beyond banana bread in a pan: it’s a soft, buttery sheet cake with deep banana flavor in every crumb, topped with a tangy cream cheese frosting that melts into the warm top layer. It’s an easy, quick, homemade showstopper that feeds a crowd and keeps beautifully for days. Whether you bake it for a weeknight treat, a birthday, or a potluck, it consistently earns requests for seconds. Let’s get it in the oven.
Why You’ll Love This Recipe
- Intense banana flavor: uses 4-5 very ripe bananas for a deep, sweet, fruit-forward crumb
- Cloud-soft texture: melted butter, sour cream, and cornstarch create a melt-in-your-mouth bite
- Silky cream cheese frosting: tangy, smooth, and spreadable straight from the bowl
- Sheet cake simplicity: one 9×13 pan, no layering, no leveling, no stress
- Crowd-feeder: yields 24 generous slices, ideal for gatherings and meal prep
- Freezer-friendly: bakes and freezes beautifully, frosted or unfrosted
Ingredients
| Component | Ingredient | Amount |
|---|---|---|
| Dry | All-purpose flour, spooned and leveled | 2 ¼ cups (280 g) |
| Dry | Cornstarch | ¼ cup (25 g) |
| Dry | Baking powder | 1 tsp |
| Dry | Baking soda | 1 tsp |
| Dry | Ground cinnamon | 2 tsp |
| Dry | Salt | ½ tsp |
| Wet | Unsalted butter, melted and cooled | ¾ cup (168 g) |
| Wet | Granulated sugar | 1 cup (200 g) |
| Wet | Honey or brown sugar | ¼ cup (80 g) |
| Wet | Large eggs, room temperature | 3 |
| Wet | Pure vanilla extract | 1 ½ tsp |
| Wet | Sour cream or plain Greek yogurt | ½ cup (120 g) |
| Wet | Mashed very ripe bananas | 2 cups (about 5 large bananas) |
| Frosting | Full-fat cream cheese, softened | 8 oz (225 g) |
| Frosting | Unsalted butter, softened | ¼ cup (57 g) |
| Frosting | Powdered sugar, sifted | 2 cups (240 g) |
| Frosting | Pure vanilla extract | 1 tsp |
| Frosting | Pinch of salt | 1 pinch |
Note: For lemon cream cheese frosting, add 1 tbsp fresh lemon juice and 1 tsp lemon zest to the frosting; the citrus cuts through the sweetness and brightens the banana flavor.
How to Make It
Preheat and prep – Preheat oven to 350°F (177°C). Grease a 9×13-inch metal or glass baking pan and line with parchment paper for easy removal. (3 min)
Mash the bananas – In a bowl or stand mixer, mash bananas until smooth with only small lumps remaining. Set aside. (2 min)
Mix dry ingredients – In a large bowl whisk together flour, cornstarch, baking powder, baking soda, cinnamon, and salt. Set aside. (1 min)
Mix wet ingredients – In a separate large bowl whisk melted butter, granulated sugar, and honey until smooth. Add eggs one at a time, whisking after each. Stir in vanilla, sour cream, and mashed bananas until fully combined. (3 min)
Combine – Pour the wet ingredients into the dry and fold gently with a silicone spatula until just combined; stop as soon as no dry streaks remain. Do not overmix or the cake turns dense. (1 min)
Bake – Pour batter into the prepared pan and smooth the top evenly. Bake at 350°F for 45-55 minutes, until a toothpick inserted in the center comes out with a few moist crumbs but no wet batter. (50 min)
Cool completely – Transfer pan to a wire rack and cool fully before frosting, at least 1 hour. Never frost a warm cake; the frosting will slide off. (60 min)
Make the frosting – Beat softened cream cheese and butter together until smooth and lump-free, about 2 minutes. Add sifted powdered sugar in two additions, then beat in vanilla and salt until silky. (4 min)
Frost and serve – Spread frosting evenly over the cooled cake in a thick, swooping layer. Slice and serve directly from the pan.
Pro tip: The riper the bananas, the sweeter and more flavorful the cake. Look for skins that are almost entirely black; they mash smoothly and deliver maximum sweetness without extra sugar.
Pro tip: For the cleanest slices, refrigerate the frosted cake for 20 minutes before cutting; the frosting firms up and each slice holds its shape.
Macros & Nutrition Table
| Nutrient | Amount per Slice* |
|---|---|
| Calories | 295 kcal |
| Protein | 3 g |
| Carbohydrates | 38 g |
| Net Carbs | 37 g |
| Fat | 15 g |
| Fiber | 1 g |
Based on 24 slices; calculated using USDA FoodData Central for each ingredient (flour, butter, sugar, eggs, bananas, sour cream, cream cheese, powdered sugar) and averaged per portion. Values are approximate and will vary with specific brands and toppings.
Pro Tips & Variations
- Layer cake version: divide batter between two 8-inch round pans and bake for 30-35 minutes; double the frosting recipe for a full layer cake.
- Add-ins: fold in ½ cup chopped walnuts, pecans, or chocolate chips for extra texture and flavor contrast.
- Banana caramel cake: drizzle homemade caramel sauce over the frosted top and sprinkle with flaky sea salt for an elevated finish.
- Gluten-free: substitute all-purpose flour and cornstarch with a 1:1 certified gluten-free flour blend; the texture stays soft and moist.
- Dairy-free: use melted coconut oil for butter, full-fat coconut yogurt for sour cream, and a dairy-free cream cheese for the frosting.
- Storage shortcut: bake the cake a day ahead unfrosted; frost just before serving for the freshest presentation.
Serving Suggestions
- With a scoop of vanilla bean ice cream – the cold, creamy contrast against the moist, spiced cake is a textural treat at any temperature.
- As a brunch centerpiece – slice and serve alongside fresh fruit, whipped cream, and coffee for an effortless spread.
- Topped with caramelized banana slices – cook sliced bananas in butter and brown sugar for 2 minutes and lay them over the frosting for a stunning, glossy finish.
Storage & Reheating
- Room temperature: store unfrosted cake loosely covered for up to 2 days in a cool kitchen.
- Fridge: once frosted, cover tightly and refrigerate for up to 5 days; bring slices to room temperature for 20 minutes before serving for the softest texture.
- Freezer: freeze unfrosted cake tightly wrapped in plastic wrap and foil for up to 3 months. Thaw overnight in the fridge, frost, and serve. Frosted slices can also be frozen individually; thaw in the fridge or at room temperature.
- Reheating: no reheating needed for frosted slices; for unfrosted cake, warm a slice in the microwave for 15-20 seconds to revive the soft, fresh-baked texture.
FAQ
Q: Can I use slightly green or just-ripe bananas?
A: Overripe bananas with mostly black skins deliver the most intense flavor and natural sweetness; just-ripe bananas work but the cake will taste milder and less sweet. Speed up the ripening process by baking unpeeled bananas at 300°F for 15-20 minutes until the skins blacken.
Q: Why did my cake sink in the middle?
A: The most common causes are underbaking, opening the oven door too early, or using too much baking soda. Always test with a toothpick and wait until it comes out with only moist crumbs before removing the cake.
Q: Can I make this cake without cream cheese frosting?
A: Absolutely; the cake stands well on its own dusted with powdered sugar, or top it with a simple chocolate ganache or brown butter glaze for a richer, nutty finish.
Q: How do I keep the frosting from being too sweet?
A: Reduce powdered sugar to 1 ½ cups and add an extra pinch of salt plus a tablespoon of lemon juice; the tartness and salt balance the sweetness without thinning the frosting.
Q: Can I bake this as cupcakes instead of a sheet cake?
A: Yes; fill lined cupcake tins about ¾ full and bake at 350°F for 18-22 minutes; the recipe yields approximately 24 standard cupcakes.
Call to Action
If you baked this Best Banana Cake, I’d love to hear how it turned out—did you go classic cream cheese frosting, add walnuts, or try the caramelized banana topping? Drop a comment below and share your experience. Pin this recipe to your baking board so it’s ready the next time overripe bananas call your name, and share it with a friend who needs the ultimate crowd-pleasing dessert. For another banana-packed bake, check out my Cucumber Strawberry Salad —soft, quick, and perfect alongside your morning coffee. Happy baking!
