Low Fat Banana Cake Recipe: Moist and Fluffy Without the Butter

This banana cake delivers moist texture and rich flavor without relying on butter or excess fat.

By using ripe bananas, applesauce, and a touch of oil, we achieve a tender crumb that stays fresh for days. The baking process ensures even cooking and perfect rise every time.

Ingredients for Low Fat Banana Cake

Pantry raid time. Ripe bananas and a few basics make this cake happen.

The bananas are the star here—the spottier, the better (that’s when they’re sweetest and easiest to mash). I usually grab mine from Trader Joe’s or Whole Foods when they’re on sale. The applesauce replaces butter beautifully, but make sure it’s unsweetened or your cake might turn out too sweet. Most stores carry it in the baby food aisle too.

No applesauce? Equal parts mashed avocado or pumpkin puree work in a pinch. Out of Greek yogurt? Plain non-fat yogurt or buttermilk does the trick. The cinnamon is optional, but I always add it (trust me, it’s worth it). If you’re avoiding eggs, flax eggs at a 1:1 ratio keep it vegan-friendly.

This cake stays moist for 3-4 days at room temperature in an airtight container. Freezes beautifully too—slice before freezing for easy portions. Keeps in the freezer for up to 3 months (if it lasts that long).

Step-by-Step Instructions for Low Fat Banana Cake

Here’s my go-to method for a cake that stays rich and tender without the usual butter.

Step 1: Mash the Bananas and Mix Wet Ingredients

In a large bowl, mash the 3 whole Ripe Bananas until smooth with only a few small lumps remaining. I use very ripe bananas for this—they’re sweeter and mash more easily, plus they add natural moisture that replaces butter.

To the mashed bananas, whisk in the 1 cup Granulated Sugar, 1 cup Unsweetened Applesauce, 0.25 cup Vegetable Oil, 2 whole Large Eggs, and 1 tsp Vanilla Extract. The applesauce is key here—it keeps the cake moist while cutting fat. Mix until everything is fully combined and the mixture looks slightly thick but smooth.

Step 2: Combine Dry Ingredients Separately

In a separate bowl, sift together the 2 cups All-Purpose Flour, 1 tsp Baking Soda, 0.5 tsp Baking Powder, 1 tsp Ground Cinnamon, and 0.5 tsp Salt. Sifting the flour prevents clumps and ensures a lighter texture, which is especially important in low-fat baking.

I always double-check that my baking powder and baking soda are fresh—old leaveners can make your cake dense instead of fluffy. The cinnamon adds a warm, cozy flavor that pairs perfectly with the bananas.

Step 3: Fold in Dry Ingredients and Greek Yogurt

Gradually add the dry ingredients to the wet mixture, stirring just until the flour disappears. Don’t overmix—this can develop the gluten in the flour, leading to a tough cake. A few small streaks of flour are fine; they’ll disappear as you add the next ingredient.

Stir in the 0.5 cup Non-Fat Greek Yogurt until just combined. The yogurt adds moisture and a slight tang, balancing the sweetness without adding fat. The batter will be thick but still pourable—almost like a thick pancake batter.

Step 4: Bake Until Golden and Springy

Pour the batter into a greased 9-inch round or square cake pan and spread it evenly with a spatula. Bake in a preheated 350°F oven for 30-35 minutes, or until the top is golden brown and springs back when lightly pressed with a finger.

I start checking at 30 minutes—ovens can vary, and you don’t want to overbake. A toothpick inserted into the center should come out clean or with just a few moist crumbs. If it’s wet, give it another 3-5 minutes and check again.

Step 5: Cool Completely Before Slicing

Let the cake cool in the pan on a wire rack for 10 minutes. This allows it to set slightly so it holds its shape when you remove it. Then, transfer the cake to the wire rack to cool completely before slicing.

I know it’s tempting to dig in right away, but cooling ensures the texture stays moist and tender. If you cut into it while warm, it can crumble. Once fully cool, slice and serve as is, or dust with a little powdered sugar for a finishing touch.

Pro Cooking Tips for This Recipe

Banana Ripeness Matters

Always use bananas with plenty of brown spots—they’re sweeter and mash more easily. I found that 3 very ripe bananas give the best flavor and moisture. The spottier, the better for natural sweetness without extra sugar. 💡

Mixing Technique

When combining wet and dry ingredients, stir just until the flour disappears. Overmixing develops gluten, which makes cake dense. I use a spatula and stop when I see a few streaks—they’ll vanish during baking.

Oven Temperature Control

Bake at exactly 350°F for even cooking. I check at 30 minutes—if the toothpick has wet batter, give it 3-5 more minutes. Every oven varies slightly, so start checking early.

Pan Preparation

Grease your 9-inch pan thoroughly, even if it’s non-stick. I use baking spray with flour for extra insurance. This prevents sticking and helps the cake release cleanly after baking.

Cooling is Crucial

Let the cake rest in the pan for 10 minutes, then transfer to a wire rack. Cooling completely before slicing prevents crumbling. I know it’s hard to wait, but patience pays off with perfect texture. 🥄

Ingredient Temperature

Use room temperature eggs and applesauce for even mixing. Cold ingredients can cause the oil to clump. I take my eggs out 30 minutes before starting to ensure they blend smoothly.

Frequently Asked Questions