Desserts
This banana cake recipe no baking powder delivers moist, tender layers without relying on chemical leaveners—just a clever baking soda trick and ripe bananas. 💛 The secret lies in combining buttermilk with baking soda for lift, while melted butter keeps every slice rich and velvety. I perfected this version after years of testing, ensuring no dry crumbs or dense texture. What sets this apart is the foolproof rise achieved through natural reactions, not baking powder. The cake emerges with a golden top and tender crumb, perfectly balanced between sweet and subtly spiced. It bakes in 35 minutes at 350°F, making it ideal for weeknight desserts or holiday gatherings. The result is a cake that stays moist for days, with a buttery richness that pairs beautifully with cream cheese frosting or a dusting of powdered sugar. No special equipment needed—just a standard mixing bowl and your favorite oven. For extra flavor, fold in walnuts or chocolate chips, or adapt it to vegan by replacing eggs with flaxseed and butter with coconut oil. Let's bake this crowd-pleaser!
Ingredients for banana cake recipe no baking powder
Ripe bananas and buttermilk create the magic—no baking powder needed.
| Ingredient | Amount | Notes |
|---|---|---|
| Ripe Bananas 🍌 | 3 whole | Mashed, about 2 cups total |
| All-Purpose Flour 🌾 | 2 ½ cups | Sifted for light texture |
| Granulated Sugar 🍚 | 1 ½ cups | White or light brown |
| Buttermilk 🥛 | 1 cup | Full-fat for richness |
| Unsalted Butter 🧈 | 1 cup | Melted, full-fat preferred |
| Baking Soda 🧂 | 1 tsp | Pure, not baking powder |
| Vanilla Extract 🌿 | 1 tsp | Pure, not imitation |
| Salt 🧂 | ½ tsp | Fine sea salt |
| Ground Cinnamon 🌶️ | 1 tsp | Freshly ground preferred |
| Large Eggs 🥚 | 2 whole | Room temperature |
| Vegetable Oil 🫒 | ½ cup | Light or canola |
| Powdered Sugar 🍚 | ½ cup | For optional topping |
The bananas need to be spotted with brown—that's when they're sweetest. I always grab Chiquita or Dole from the grocery store, but any ripe bananas work. The buttermilk is key: Trader Joe's has the best full-fat kind, but regular supermarket buttermilk is fine. For the flour, King Arthur is my go-to—it bakes up lighter. The baking soda is non-negotiable here; it's what creates that perfect rise without baking powder. Store your baking soda in an airtight container to keep it potent.
No buttermilk? Mix 1 cup milk with 1 tbsp vinegar or lemon juice and let it sit for 5 minutes. Short on powdered sugar? Crushed candy sprinkles add color and work in a pinch. The eggs can be replaced with 2 flax eggs (2 tbsp ground flaxseed + 6 tbsp water) for vegan, but the texture will be slightly denser. If you're adding chocolate chips or nuts, fold them in at the end—Ghirardelli chips or walnuts are my favorites. The melted butter should be just warm to the touch, not hot, or it'll cook the eggs.
This cake keeps beautifully—3-4 days in an airtight container at room temperature, or 1 week in the fridge. I always bake an extra batch and freeze half for lazy days. To reheat, wrap a slice in a damp paper towel and microwave for 10-15 seconds. The powdered sugar topping is optional but adds that perfect finishing touch—store it in a jar with a tight lid for up to 2 weeks.
Why You'll Love This Recipe
- No Fuss Mixing: I swear by this recipe—just mash bananas, stir in dry ingredients, fold in buttermilk, and pour. No sifting, no measuring cups flying everywhere. The buttermilk keeps it tender without extra effort, and the butter adds richness while you’re still licking the bowl.
- Caramel-Kissed Magic: That ripe banana flavor? It’s like a hug in cake form—sweet, deep, and just a little funky in the best way. The sugar melts into a sticky, almost toffee-like crust on top, and the buttermilk keeps it from being too dense. (Yes, even my picky husband asks for seconds.)
- Weeknight or Potluck Star: This cake bakes in one bowl, so it’s perfect for when you’re short on time or dishes. Pack it for work—it stays moist for days—and it’s just as welcome at a birthday spread as it is on a lazy Sunday. The buttermilk also makes it freeze beautifully, so I always bake two.
- Pantry-Friendly & Budget-Smart: Honestly, you’re using ingredients you already have—ripe bananas (no waste!), basic flour, and butter that won’t break the bank. The buttermilk adds that tangy lift without costing extra, and leftovers? They’re even better the next day, sliced with a little extra butter. My go-to for when I need something satisfying but simple.
Step-by-step instructions for banana cake without baking powder
Here's how to create a tender, moist banana cake using baking soda instead of baking powder.
👨🍳 Step 1: Mash the Bananas and Mix Wet Ingredients
In a large mixing bowl, mash the 3 whole ripe bananas until completely smooth—no lumps! I like to press them through a fork for even consistency. The riper the bananas, the sweeter your cake will taste, so don't skimp on this step.
Add the 1 cup melted unsalted butter, 0.5 cup vegetable oil, 1.5 cups granulated sugar, 2 whole large eggs, 1 cup buttermilk, 1 tsp vanilla extract, 0.5 tsp salt, and 1 tsp ground cinnamon to the bowl. Mix everything together with a whisk or electric mixer on medium speed for 2 minutes until fully combined. The batter should be smooth and slightly thick—this is normal for a baking soda-based cake.
👨🍳 Step 2: Sift and Fold in Dry Ingredients
In a separate bowl, sift the 2.5 cups all-purpose flour to aerate it—this lightens the texture of the finished cake. Gradually add the sifted flour to the wet ingredients while mixing on low speed. Stop mixing as soon as the flour is incorporated—overmixing develops gluten, which makes the cake tough.
I press down gently on the batter with a spatula to ensure all the flour is fully incorporated. The batter will look thick and slightly lumpy, but that's perfect for a moist, tender cake. If it seems too thick, add 1-2 tablespoons of buttermilk to loosen it slightly.
🔥 Step 3: Bake Until Golden and Springy
Preheat your oven to 350°F and grease two 9-inch round cake pans or one 9x13-inch baking pan. Pour the batter evenly into the prepared pan(s). For even baking, place the pan(s) on the middle rack of the oven.
Bake for 35-40 minutes until a toothpick inserted into the center comes out clean and the edges are golden brown. The cake should also spring back slightly when pressed gently in the center. If the top browns too quickly, tent it loosely with aluminum foil after 20 minutes to prevent over-browning while ensuring the center cooks through.
⏰ Step 4: Cool and Top for Extra Moisture
Remove the cake from the oven and let it cool in the pan for 10 minutes. Then transfer it to a wire rack to cool completely. The cake will sink slightly as it cools—that's normal and actually makes it more moist!
For that classic banana cake finish, dust the top with 0.5 cup powdered sugar while it's still warm. You can also drizzle with a simple glaze made from 0.5 cup powdered sugar and 1-2 tablespoons of buttermilk mixed together. Serve slices warm or at room temperature for the best texture.
Pro Tips For Making Banana Cake Recipe No Baking Powder
- Mash Bananas Thoroughly: I learned this the hard way—lumpy banana purée means uneven texture and a cake that collapses faster. Use a fork first, then press through a fine-mesh sieve if you’re impatient like me; it removes stubborn fiber and makes the batter silky. (Yes, it’s extra work, but your cake won’t sink like a lead weight.)
- Mix Wet Ingredients First: Combine buttermilk, melted butter, and sugar before adding dry ingredients—this dissolves sugar completely and creates a smoother batter. I used to toss everything in at once, and the cake always turned out dense. A quick whisk here saves you from gummy pockets later.
- Skip Overmixing the Batter: Once you fold in the flour, stop after 10-12 strokes. Overmixing develops gluten, and this cake relies on bananas and buttermilk for lift, not structure. Glossy batter? Good. Stringy or tough? You’ve gone too far.
- Bake Until Springy, Not Golden: This isn’t a vanilla cake—it’s dense and moist, so pull it when the edges are set but the center still jiggles slightly. My first few attempts came out dry because I waited for a deep brown crust. Use a toothpick: it should come out with moist crumbs, not clean.
Creative variations of this dish
Spiced Caramel Banana
Add ½ tsp ground cardamom and ¼ tsp freshly grated nutmeg to the wet ingredients for a warm, aromatic twist. The cardamom adds floral depth while nutmeg brings subtle earthiness—perfect for fall baking. I find Penzeys Spices cardamom pods work best when toasted lightly before grinding. 🌶️
Chocolate Swirl
Melt ½ cup dark chocolate chips with 2 tbsp butter until smooth, then swirl into the batter before baking. For a marbled effect, use a knife to drag through the batter in an "S" pattern. I recommend Ghirardelli 60% cocoa chips for balanced richness. Store-bought chocolate sauce works in a pinch too!
Walnut Streusel Topping
Mix ½ cup chopped walnuts, ¼ cup brown sugar, 2 tbsp flour, and 2 tbsp melted butter into a coarse crumble. Sprinkle over batter before baking for a nutty, buttery crunch. Toast the walnuts first for enhanced flavor—I use my Cuisinart toaster oven on low for 5 minutes. 🌰
Vegan Adaptation
Replace eggs with 2 flax eggs (2 tbsp ground flaxseed + 6 tbsp water), swap butter for ½ cup coconut oil, and use almond milk instead of buttermilk. The texture stays moist but develops slightly faster—bake for 30-35 minutes instead of 40. I love Silk Unsweetened Almond Milk for its neutral flavor.
Coffee Infusion
Add 1 tbsp instant espresso powder or 2 tbsp cold brew concentrate to the wet ingredients for a subtle coffee note. This pairs beautifully with a chocolate frosting. For stronger flavor, steep 1 tbsp finely ground coffee in ¼ cup hot water, cool, then add to the batter. 💛
Citrus Zest Glaze
After baking, drizzle with a glaze made from ½ cup powdered sugar, 1 tbsp lemon juice, and 1 tsp orange zest. This brightens the rich banana flavor perfectly. I use Florida Valencia oranges for their intense zest. For extra tang, add ½ tsp vanilla bean paste instead of extract.
Nutrition facts
Frequently asked questions
Why does this banana cake recipe work without baking powder?
This recipe relies on a chemical reaction between baking soda and the buttermilk (or vinegar/lemon juice) to create lift. The acid in buttermilk activates the baking soda, producing carbon dioxide bubbles that make the cake rise. The ripe bananas also add natural sweetness and moisture, while the melted butter ensures a rich, tender crumb.
Can I substitute buttermilk if I don't have any?
Mix 1 cup milk (any kind) with 1 tablespoon vinegar or lemon juice, then let it sit for 5 minutes until it curdles. This DIY buttermilk works perfectly in the recipe. For extra richness, use whole milk instead of skim. The acid is what activates the baking soda for that perfect rise.
How do I know when the cake is fully baked?
Insert a toothpick into the center—the cake is done when it comes out clean or with just a few moist crumbs. The edges should also be golden brown, and the cake should spring back slightly when pressed gently. If the top browns too quickly, tent it with aluminum foil after 20 minutes to prevent over-browning while the center finishes cooking.
Will this cake be too dense without baking powder?
Not at all! The key is proper mixing and baking time. Sift the flour to aerate it, and don't overmix the batter—just combine until fully incorporated. The baking soda reaction creates lift, while the melted butter and oil keep the texture tender. If your cake seems slightly dense, it might need 5 more minutes in the oven. The result should be moist, not dense—promise!
Can I make this recipe vegan?
Yes! Replace the 2 eggs with 2 flax eggs (2 tbsp ground flaxseed + 6 tbsp water), swap butter for ½ cup coconut oil, and use almond milk instead of buttermilk. The texture stays moist but may bake slightly faster—check for doneness at 30 minutes. For best results, use Silk Unsweetened Almond Milk and reduce baking time by 5 minutes.