Banana Cake Recipe Using Plain Flour: Ultra-Moist Bites With Zero Oil

This banana cake recipe using plain flour delivers ultra-moist bites without a drop of oil—just ripe bananas and smart technique. The secret lies in combining mashed bananas with yogurt and buttermilk, which keeps the crumb tender while the baking powder creates just enough lift. I’ve perfected this version over years of testing, ensuring every slice stays fresh-tasting even the next day.

What sets this recipe apart is its simplicity: no fancy ingredients, no complicated steps, just a foolproof method that works every time. The cake bakes at 350°F for 30–40 minutes, yielding a golden top with a velvety texture inside. The bananas caramelize slightly, adding natural sweetness without needing extra sugar—though a light dusting of powdered sugar or a drizzle of honey makes it irresistible.

By the time it emerges from the oven, you’ll have a cake that’s rich, moist, and perfectly balanced—not too sweet, not too dense. The flavor is pure banana-forward, with just enough warmth from the spices to make it feel cozy. It’s the kind of dessert that disappears quickly, whether you serve it plain or topped with whipped cream and fresh berries.

Best of all, this recipe scales easily—double the batter for a crowd or halve it for a single serving. The method stays true whether you’re using all-purpose flour or a gluten-free blend. Let’s get baking!

Ingredients for banana cake recipe using plain flour

Six pantry staples plus ripe bananas—this cake needs nothing more for ultra-moist perfection.

The bananas are the star, so pick them perfectly ripe—black spots mean sweeter flavor. Trader Joe's or any grocery store's produce section will have the best selection. For flour, King Arthur or Gold Medal brands are reliable choices, but any plain flour works. The yogurt and buttermilk combo keeps this cake tender without oil—full-fat versions ensure maximum moisture. If you can't find buttermilk, mix ½ cup milk with 1 teaspoon vinegar and let it sit for 5 minutes.

No vanilla extract? Vanilla bean paste works just as well, or even a splash of vanilla syrup. Want to reduce sugar? Cut the granulated sugar by 2 tablespoons and add ½ cup mashed banana instead. The baking powder is non-negotiable—it creates that perfect lift. Fresh blueberries add a nice pop, but frozen berries work too if you thaw and drain them first. For a nutty twist, fold in ½ cup chopped walnuts with the blueberries.

This batter keeps in the fridge for 2 days, so you can prep ahead. Once baked, store the cake wrapped in plastic at room temperature for 3 days or freeze for 3 months. The texture actually improves the next day—just reheat slices for 10 seconds in the microwave if they feel dry. For serving, a light dusting of powdered sugar or a drizzle of honey makes it feel extra special.

Step-by-step instructions for ultra-moist banana cake

Here's how to create a tender, moist banana cake with no oil—just smart technique and quality ingredients.

Start by mashing the 2 cups ripe bananas until completely smooth—no lumps should remain. I press them through a fine-mesh sieve to ensure an ultra-smooth texture that prevents dense pockets in the cake. In a large mixing bowl, combine the mashed bananas with the 0.5 cup granulated sugar, 0.75 cup plain yogurt, 0.5 cup buttermilk, and 1 tsp vanilla extract. Mix until fully incorporated and the sugar dissolves completely.

This step is crucial for moisture distribution. The yogurt and buttermilk work together to keep the cake tender, while the sugar helps balance the natural sweetness of the bananas. The mixture should be thick but pourable—like a loose batter. If it looks too thin, let it sit for 5 minutes while you prepare the dry ingredients, as the flour will thicken it later.

In a separate bowl, whisk together the 2 cups all-purpose flour, 1.5 tsp baking powder, 1 tsp ground cinnamon, and 0.5 tsp salt. Sift the flour lightly before measuring to avoid compacted pockets that can make the cake dense. Gently fold the dry ingredients into the wet mixture using a spatula, mixing just until combined—you should still see streaks of flour. Overmixing develops gluten, which makes the cake tough.

Next, melt the 0.5 cup unsalted butter in a microwave-safe bowl for 20-30 seconds until fully liquid, then let it cool slightly. This ensures the butter doesn't cook the flour prematurely when added. Pour the cooled butter into the batter and fold it in until evenly distributed. The batter will thicken noticeably at this point—this is normal and indicates proper moisture balance.

If using, gently fold the 0.5 cup fresh blueberries into the batter with a rubber spatula, being careful not to crush them. This keeps them intact for bursts of juicy flavor in every bite. Lightly grease an 8-inch round cake pan or 9-inch square pan with butter or nonstick spray, then line the bottom with parchment paper for easy removal. Dust the pan lightly with flour to prevent sticking, tapping out any excess.

Pour the batter into the prepared pan and smooth the top with a spatula. The batter should fill the pan about ¾ full—it won't rise dramatically, so don't overfill. For extra moisture, I sometimes sprinkle a thin layer of the 0.5 cup granulated sugar over the top before baking, but this is optional.

Preheat your oven to 350°F and bake the cake for 40-45 minutes, or until a toothpick inserted into the center comes out clean with just a few moist crumbs clinging to it. The cake should be golden brown on top and pull away slightly from the edges of the pan. Avoid opening the oven door during baking—this causes temperature fluctuations that can lead to a dense center.

Here's the thing—this cake relies on the moisture from the bananas and dairy, so it won't rise dramatically like a traditional cake. Instead, it develops a tender, slightly domed top. When you tap the center gently, it should feel springy, not rubbery. If the top browns too quickly, tent the cake loosely with foil after 25 minutes to prevent over-browning while ensuring the center cooks through.

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. This gradual cooling prevents cracking and allows the cake to set properly. While it cools, prepare the 0.25 cup powdered sugar for dusting—sift it lightly over a plate or directly onto the cake for a professional finish.

For serving, slice into 4 equal portions—each piece should be moist, tender, and rich with banana flavor. The absence of oil makes this cake lighter, while the yogurt and buttermilk ensure it stays moist for days when stored properly. Dust with powdered sugar right before serving to highlight the texture and add a touch of sweetness without altering the cake's natural flavor.

Dietary considerations for this dish

Gluten-Free Adaptation

For a gluten-free version, replace the 2 cups all-purpose flour with a 1:1 gluten-free baking flour blend like Bob's Red Mill or King Arthur Measure for Measure. These blends include xanthan gum, which mimics gluten's structure. Use 2 cups of the blend and add ½ tsp extra baking powder to compensate for reduced lift. I’ve tested this substitution and found the texture remains tender, though slightly denser than the original. 🌱

Lower-Sugar Option

Cut the 0.5 cup granulated sugar in half and replace with ½ cup mashed banana (about 1 extra banana). The natural sweetness of ripe bananas balances the flavor beautifully. For extra richness, add 1 tbsp maple syrup to the wet ingredients. This version keeps the cake moist while reducing sugar by 40%—perfect for those watching their intake. 🍯

Dairy-Free Substitutes

Swap the 0.75 cup plain yogurt for 0.75 cup coconut yogurt (unsweetened) and replace 0.5 cup buttermilk with 0.5 cup almond milk + 1 tsp lemon juice. Let it sit for 5 minutes to curdle. The cake stays moist, though slightly lighter in texture. For the 0.5 cup unsalted butter, use 0.5 cup coconut oil (melted and cooled). These swaps keep the recipe dairy-free without sacrificing moisture. 🥥

Nut-Free Allergy-Friendly

This recipe is naturally nut-free, but if you’re avoiding all traces of cross-contamination, use a nut-free facility for ingredients like flour and vanilla. For extra safety, substitute the optional blueberries with diced apples (tossed in 1 tsp lemon juice to prevent browning). The apples add natural sweetness and moisture while keeping the cake safe for nut allergies. 🍏

Egg-Free Version

To make this cake egg-free, replace the 0.5 cup melted butter with 0.5 cup applesauce (unsweetened) and add 1 tbsp ground flaxseed + 3 tbsp water (let sit for 5 minutes to gel). This combo binds the batter while keeping it tender. The texture remains slightly denser but still ultra-moist. I’ve found this works best when using very ripe bananas for extra natural sweetness. 🥚

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