Banana Cake

This Banana Cake recipe is an easy, comforting dessert that comes together with ripe bananas and pantry staples. With a soft crumb that stays moist, a thick cream cheese frosting and plenty of toasted walnuts on top, every slice feels homemade in the best way. The banana flavor is clear but not heavy, so the cake still tastes light enough for brunch. We love cooler weekends because they mean that simple bakes like this Banana Cake are back on the table.

And when I want another chilled banana favorite, I make our Classic Banana Pudding. Both recipes use ripe bananas well, but this cake gives you golden edges and soft frosting swirls. Comfort foods, especially those that feel familiar and nourish a crowd, are my favorite kinds of treats. This one works for a holiday, potluck or quiet afternoon at home.

So save those spotted bananas. They give the cake its sweetest flavor and keep the crumb tender for days.

Ingredients

Here’s what I use for this recipe and you can always make substitutions if you prefer.

• Cavendish banana: Use 3 very ripe and mashed for the batter. Keep 2 ripe but firm for slicing over the frosting.
• Unsalted butter: Melt and cool 1/2 cup for the batter. Soften the remaining 1/2 cup for the frosting.
• Light brown sugar: Pack it lightly to add caramel flavor and moisture.
• Granulated cane sugar: Use fine crystals so they dissolve quickly into the wet base.
• Large egg: Bring them to 68 to 72°F before whisking for a smoother emulsion.
• Pure vanilla extract: Use 2 teaspoons in the batter and 1 teaspoon in the frosting.
• Full-fat sour cream: Bring it to room temperature to add acidity and keep the crumb tender.
• Unbleached all-purpose flour: Spoon it into the measuring cup and level it to avoid a dry cake.
• Baking soda: Use a fresh box so the acidic batter rises properly.
• Baking powder: Adds steady lift while the center sets.
• Fine sea salt: Balances the sweetness and sharpens the banana flavor.
• Ground Saigon cinnamon: Adds warm spice without overpowering the ripe banana.
• Avocado oil baking spray: Coat the pan lightly so the tender edges release without tearing.
• Full-fat brick cream cheese: Soften it to 65 to 68°F so the frosting blends without lumps.
• Powdered cane sugar: Sift it if compacted to keep the frosting smooth.
• Whole milk: Add only as needed to loosen the frosting into soft ridges.
• English walnut: Toast and roughly chop them for uneven crunch across the cake.
• Lemon: Juice it and use 1 tablespoon to slow browning on the banana rounds.

Tools You’ll Need

• 9×13-inch light aluminum cake pan: A light aluminum pan bakes the center evenly and protects the edges – a dark pan can overbrown the banana sugars before the middle sets.
• Large clear glass mixing bowl: A 4-quart bowl gives the batter room to fold without spilling – a smaller bowl encourages overmixing and flour pockets.
• Medium mixing bowl: A 2-quart bowl keeps the dry ingredients evenly dispersed – a shallow plate lets baking soda clump and creates bitter spots.
• Rubber spatula: A flexible spatula folds the batter with fewer strokes and scrapes the bowl clean – a rigid spoon can leave dry flour at the bottom.
• Electric hand mixer: A mixer with low and medium settings smooths the frosting in under 4 minutes – a high-only model can whip in excess air.
• Instant-read thermometer: A thin-probe thermometer confirms the cake reaches 200 to 205°F – a thick probe leaves a large hole and can misread the center.
• Offset spatula: A 6-inch offset spatula spreads frosting without tearing crumbs – a straight knife drags through the soft surface.

Instructions

Step 1: Mash the bananas and whisk the wet base

Keep the eggs, sour cream and melted butter between 68 and 72°F. Mash 3 very ripe Cavendish bananas for 60 to 90 seconds. Leave a few pea-sized pieces, then whisk in 1/2 cup melted butter, both sugars, 2 eggs, 2 teaspoons vanilla and sour cream.

Whisk for 45 seconds and scrape the bowl once at 20 seconds. The mixture should look thick and glossy with small banana flecks. You’ll smell vanilla and ripe banana, and the sugar should stop looking grainy.

Don’t whisk past 60 seconds after adding the eggs or you’ll trap too much air. Mix briefly at room temperature because a stable emulsion gives an even crumb.

Tip: Weigh the mashed banana if possible. About 345 grams gives strong flavor without making the center gummy.

Step 2: Fold the dry ingredients into the banana batter

Whisk the unbleached all-purpose flour, baking soda, baking powder, fine sea salt and Saigon cinnamon for 30 seconds. Add the dry mixture to the banana base in three portions. Fold with a rubber spatula in a J-shaped motion for 45 to 60 seconds.

Turn the bowl one quarter turn after every three folds. Stop when only two or three pale flour streaks remain. The batter should fall in a thick ribbon and look slightly lumpy.

Keep it between 68 and 72°F while folding. Overmixing past 60 seconds builds excess gluten and makes the cake chewy. Fold gently because limited gluten keeps the crumb soft.

Tip: Stop folding while two pale streaks remain. They disappear during the final scrape without adding extra gluten.

Step 3: Bake the batter until the center springs back

Coat a 9×13-inch dull aluminum cake pan with 2 teaspoons avocado oil baking spray. Pour in the batter and spread it toward the corners. Bake in a 350°F preheated oven for 30 to 34 minutes.

Rotate the pan once at minute 20. Check for an internal temperature of 200 to 205°F in the center. The top should turn warm golden brown with slightly darker edges.

A light press should spring back, and a tester should carry a few moist crumbs. Go past 205°F and the banana sugars start drying the crumb. Bake at 350°F because moderate heat sets the center before the edges harden.

Tip: Place the pan on the middle rack with at least 3 inches of space above it for steady heat circulation.

Step 4: Spread the cream cheese frosting over the cooled cake

Cool the cake in its pan for 90 minutes until the center drops below 75°F. Keep the full-fat brick cream cheese and softened butter at 65 to 68°F. Beat them for 2 minutes, then add powdered cane sugar in three portions.

Beat 90 seconds more with 1 teaspoon vanilla and up to 2 tablespoons whole milk. The frosting should look ivory and hold soft ridges without appearing glossy or runny. Spread it over the cake in uneven waves for 2 minutes.

(I frosted a warm batch once – the center turned slick and slid toward the corners. ) Warm cake melts the butter and thins the frosting. Cool fully because firm frosting protects the tender crumb.

Tip: Sift powdered cane sugar through a fine mesh if it has firm lumps larger than 1/8 inch.

Step 5: Slice the cake and add the fresh topping

Toss 2 ripe but firm Cavendish bananas with 1 tablespoon fresh lemon juice for 30 seconds. Let the frosted cake rest for 20 minutes at 68 to 72°F. Cut it into 12 uneven squares with one clean downward motion per cut.

Plate one square, then add 3 banana rounds and 1 tablespoon toasted English walnuts. The slice should show a moist golden crumb with tiny banana flecks and darker baked edges. The frosting should stay thick with visible swirls.

Add the banana rounds within 10 minutes of serving or they’ll darken and release moisture. Garnish last because fresh fruit stays bright and the frosting stays clean.

Tip: Wipe the cutting edge after every two cuts so the ivory frosting stays distinct from the golden crumb.

Pro Tips

• Use bananas with at least 50% brown spotting because their starch has converted into sweeter sugars and softer pectin.
• Measure flour by spooning it into the cup and leveling it. Scooping can add 20% more flour and dry the cake.
• Bake in a light-colored 9×13-inch aluminum pan. Dark pans can overbrown the edges before minute 30.
• Set a timer for minute 20 and rotate the pan once. Most home ovens run 15 to 25°F hotter near the back.
• Cool the cake below 75°F before frosting. Even slightly warm crumbs can melt the butter and make the topping slide.
• Toast the English walnuts at 325°F for 7 to 9 minutes until they smell nutty, then cool them completely.
• Add fresh banana rounds no more than 10 minutes before serving. Earlier garnish can darken and wet the frosting.

• Fold 3/4 cup mini semisweet chocolate chips into the finished batter for a banana chocolate version with small melted pockets.
• Add 1/2 cup unsweetened shredded coconut and replace the English walnuts with toasted pecans for a tropical variation.
• Stir 1 tablespoon instant espresso powder into the melted butter for a deeper flavor that balances the sweet frosting.
• Bake the batter in two 8-inch round pans for 24 to 28 minutes, then stack them only after both layers cool fully.

Storage Instructions

Refrigerate the frosted Banana Cake within 2 hours because the topping contains full-fat cream cheese. Keep slices in a shallow airtight container for up to 4 days, with parchment between layers. For freezing, wrap unfrosted squares twice in plastic and once in foil. Freeze them for up to 2 months.

For another make-ahead treat, save our Classic Rice Krispie Treats. Thaw frozen cake overnight in the refrigerator, then let it stand for 25 minutes before serving. Warm an unfrosted slice at 300°F for 6 to 8 minutes if you prefer it soft. Don’t heat cream cheese frosting because it can separate.

Discard the cake if the frosting smells sour, looks watery or develops colored spots. Fresh banana garnish should never smell fermented.

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Frequently Asked Questions

Final Thoughts

If you try this recipe, I really hope you love it as much as my family does. It has become one of those cakes we just keep coming back to, no matter the season.

Drop a comment below and let me know how yours turned out. And if you’re looking for more easy dessert ideas, try our Classic Rice Krispie Treats because I’m always adding simple recipes for busy days.