Desserts
This banana cake made with oil delivers ultra-moist layers that stay tender for days—no butter required. The secret lies in using oil for richness while keeping the texture impossibly soft, a game-changer for banana cake lovers who want foolproof results every time. I've perfected this recipe after years of testing, and the difference between oil and butter is night and day.
The beauty of this method is how simple it is: just mix, bake, and enjoy. Oil creates a tender crumb without the need for extra moisture or special techniques, making this the ideal recipe for beginners or anyone who wants restaurant-quality cake without the fuss. The bananas add natural sweetness, while warm spices like cinnamon deepen the flavor profile.
What you'll end up with is a cake that's moist, flavorful, and perfectly balanced—no dry edges or dense crumb. The oil keeps it rich and tender, while the baking powder ensures a light rise. This isn't just another banana cake; it's the one that will become your new standard.
Perfect for birthdays, potlucks, or a cozy weekend treat, this recipe scales easily and stays fresh for days. The instructions are straightforward, and the ingredients are likely already in your pantry. Let's get baking!
Ingredients for banana cake made with oil
Eleven simple ingredients create restaurant-quality banana cake with ultra-moist layers.
| Ingredient | Amount | Notes |
|---|---|---|
| Ripe Bananas 🍌 | 2 cups | Mashed, no need to peel |
| All-Purpose Flour 🌾 | 2 cups | Sifted for light texture |
| Granulated Sugar 🍚 | 1 ½ cups | White or light brown |
| Vegetable Oil 🫒 | 1 cup | Light or canola preferred |
| Large Eggs 🥚 | 2 whole | Room temperature |
| Baking Powder 🍞 | 2 tsp | Double-acting preferred |
| Ground Cinnamon 🌿 | 1 tsp | True cinnamon, not cassia |
| Salt 🧂 | ½ tsp | Fine sea salt |
| Vanilla Extract 🍯 | 1 tbsp | Pure vanilla preferred |
| Walnuts 🥜 | ½ cup | Chopped, optional topping |
| Unsweetened Shredded Coconut 🥥 | ½ cup | For topping, optional |
The bananas are non-negotiable—ripe with brown spots is key for natural sweetness and moisture. Kroger's or Trader Joe's usually have perfect ones, but check your local store's produce section for overripe ones (they're often discounted). The oil is what makes this cake different—light or canola oil keeps it tender without butter's richness. If you're using a different oil, like olive oil, reduce the amount by two tablespoons to avoid heaviness. The flour should be sifted before measuring to avoid dense layers, and store it in an airtight container to keep it fresh.
No vanilla extract? Almond extract at half the amount works in a pinch, but it has a distinct flavor. The cinnamon should be true cinnamon (Ceylon) for a milder taste—cassia can be overpowering. For the walnuts, toast them first in a dry pan for 3-4 minutes to bring out their flavor. If you're avoiding nuts, swap them for chopped pecans or omit entirely. The baking powder is crucial—double-acting ensures proper rise, so don’t substitute with baking soda. For extra moisture, you can add 2 tablespoons of sour cream or Greek yogurt, but it’s not necessary.
This cake stays moist for 4-5 days when wrapped tightly in plastic and stored at room temperature. For longer storage, freeze the whole cake (unfrosted) for up to 3 months. To reheat, wrap a slice in a damp paper towel and microwave for 10-15 seconds—it’ll taste almost as good as fresh. The coconut topping, if used, can be toasted lightly in a dry pan for 1-2 minutes before sprinkling to add crunch. Double the recipe for a 9x13-inch pan if you're baking for a crowd, but reduce the baking time by 10-15 minutes.
Why You'll Love This Recipe
- No Mash Struggles: I’ll admit—mashing bananas used to be my least favorite part of baking. But with this recipe, you don’t even need a food processor. Just squish those ripe bananas with a fork right in the bowl, and the oil keeps everything silky smooth. No sticky mess, no extra bowls.
- Sweet-Spiced Magic: That caramelized banana flavor? It’s ridiculously good when balanced with just the right amount of sugar and a whisper of warmth from the flour. The oil makes it moist without being heavy, and the eggs bind it all together—fluffy, tender, and impossible to resist. (Yes, even when you’re not supposed to be eating cake at 3 PM.)
- Breakfast or Dessert: Honestly, this cake is my secret weapon for lazy mornings. Slice it up for pancakes, pack it in lunchboxes, or serve it with a dollop of yogurt for a dessert that doesn’t feel guilty. The oil-based batter holds up better than butter cakes for freezing too—just reheat slices in the toaster, and it’s like fresh-baked again.
- Budget Breakthrough: I use this recipe when I need to stretch ingredients without sacrificing flavor. Ripe bananas are free if you’re already buying them, and the oil keeps costs down compared to butter. Plus, it makes two full 8x8 pans—so you’ll have leftovers for days, no takeout needed. (My wallet thanks me every time.)
Step-by-step instructions for banana cake made with oil
Here's the method for a tender, ultra-moist banana cake that stays fresh for days.
Mash the Ripe Bananas
Start by mashing the 2 cups ripe bananas using a fork or potato masher in a large mixing bowl. You want a smooth consistency with no visible lumps—this ensures even distribution throughout the batter. The riper the bananas, the sweeter and more flavorful your cake will be. I press the bananas through a fine-mesh sieve to remove any skins or fibrous bits, which prevents grittiness in the final texture.
Set the mashed bananas aside while you prepare the dry ingredients. The natural sugars in the bananas will caramelize during baking, contributing to that signature moist crumb. If your bananas aren't perfectly ripe, don't worry—just mash them thoroughly to release their maximum sweetness and moisture.
Combine Wet Ingredients
In the same bowl with the mashed bananas, add the 1 cup vegetable oil, 1.5 cups granulated sugar, 2 whole large eggs, 1 tbsp vanilla extract, and 0.5 tsp salt. Mix these ingredients together using a hand mixer or electric beater on medium speed for 2 minutes until fully combined and smooth. The oil creates a tender crumb, while the eggs provide structure and richness.
I like to let the mixture sit for 5 minutes before adding the dry ingredients. This brief rest allows the flavors to meld slightly, resulting in a more cohesive batter. You'll notice the mixture will be thick and slightly sticky—this is perfect for our moist cake texture. If it seems too thick, don't add liquid; the bananas will release enough moisture during baking.
Mix in Dry Ingredients
In a separate bowl, whisk together the 2 cups all-purpose flour and 2 tsp baking powder until evenly distributed. The baking powder is what gives this cake its lift—don't skip sifting it first for a lighter texture. Gradually add this dry mixture to the wet ingredients while mixing on low speed to avoid developing gluten, which would make the cake dense.
Add the 1 tsp ground cinnamon at this stage for warmth and depth of flavor. Mix just until the flour is incorporated and no dry spots remain. Overmixing here will lead to a tough cake, so stop as soon as the batter comes together. The final batter should be thick but pourable—similar to cookie dough in consistency. If it's too thick, you can add 1-2 tablespoons of milk (though our recipe doesn't call for it), but trust the bananas to provide enough moisture.
Prepare and Bake the Cake
Preheat your oven to 350°F and grease two 8-inch round cake pans or one 9x13-inch baking pan with vegetable oil, then dust lightly with flour. The oil ensures easy release, while the flour prevents sticking. Divide the batter evenly between the pans—you should have about 1½ cups per 8-inch pan or all batter in the 9x13-inch pan.
Bake for 30-35 minutes (for 8-inch pans) or 40-45 minutes (for 9x13-inch pan) until a toothpick inserted into the center comes out clean or with just a few moist crumbs. The edges should be golden brown, but the top may still look slightly underdone—this is normal. For even baking, rotate the pans halfway through the baking time. If the top browns too quickly, tent loosely with aluminum foil.
Cool and Top the Cake
Remove the cake from the oven and let it cool in the pans for 10 minutes. Then transfer to a wire rack to cool completely. This resting period allows the cake to set properly and prevents it from becoming gummy. While the cake cools, prepare the optional toppings by chopping the 0.5 cup walnuts and setting aside the 0.5 cup unsweetened shredded coconut.
Once fully cooled, spread a thin layer of vegetable oil or vanilla glaze (if using) over the top of the cake. Sprinkle evenly with the walnuts and coconut for texture and visual appeal. Serve slices at room temperature—the cake will be moist and tender, with a delicate cinnamon aroma that lingers with each bite. Store leftovers in an airtight container for up to 3 days or freeze for longer storage.
Pro Tips For Making Banana Cake Made With Oil
- Mash Bananas Thoroughly: I learned this the hard way—lumpy banana puree means uneven texture. Use a fork first, then press through a fine-mesh sieve to remove skins and fiber. No food processor? A potato masher works, but strain it afterward—trust me, your cake will be smoother.
- Grease Pan Like It’s 1950: Vegetable oil is slick but can still leave a sticky mess. Coat your pan with oil, then dust with flour, tapping out excess. Wipe the edges with a damp cloth—this guarantees the cake won’t stick, even if you’re in a hurry to pull it out.
- Bake Until Skeleton: That cake might look done at 30 minutes, but banana cakes hide moisture. Test with a skewer: it should come out clean and the center should spring back when pressed—not jiggly. Overbaking dries it out; underbaking leaves it gummy.
- Swap Sugar for Brown: Sounds weird, but it works: replace half the granulated sugar with light brown sugar. The molasses deepens the flavor and keeps the cake moist longer—no extra effort, just swap the measuring cups. (Your future self will notice the difference.)
Wine and beer pairings for this banana cake made with oil
Sweet Dessert Wines
Banana cake's caramelized sweetness pairs beautifully with Moscato d'Asti—its floral notes and gentle bubbles cleanse your palate between rich bites. I love Brachetto d'Acqui for its berry undertones that complement the cake's cinnamon warmth. Both wines are light enough to avoid overwhelming the tender crumb while adding a festive touch. 🍷
Spiced Red Options
For a bolder contrast, try a Gewürztraminer from Alsace—its lychee and spice profile mirrors the cake's cinnamon and walnut flavors. A slightly off-dry Riesling from Germany also works wonderfully, balancing the cake's moisture with its crisp acidity. These wines stand up to the cake's richness without competing.
Creamy Beer Pairings
Stick with Belgian-style witbiers like Hoegaarden—their citrusy coriander and subtle sweetness enhance the banana's natural sugars. For a richer option, Belgian dubbel beers with caramel and vanilla notes create a luxurious pairing. Avoid heavy stouts or IPAs, which can overpower the delicate cake texture. 🍺
Coffee Liqueur Finishes
Serve slices with a Kahlúa or Tia Maria drizzle for an adult dessert twist—the coffee's bitterness cuts through the cake's sweetness beautifully. I like to warm the liqueur slightly before drizzling for an extra-special touch. This works especially well when paired with the spiced red wines mentioned earlier.
Non-Alcoholic Alternatives
For non-drinkers, sparkling apple cider with a cinnamon stick provides the same refreshing contrast. Chilled vanilla chai tea with a splash of milk also complements the cake's warm spices perfectly. These options keep the experience inclusive while maintaining the flavor harmony.
Seasonal Adjustments
In summer, opt for dry Riesling to refresh your palate against the cake's richness. During winter holidays, Port wine or mulled wine adds warmth that pairs wonderfully with the cake's cozy cinnamon notes. Always let the wine or beverage reach room temperature before serving for optimal flavor release. ✨
Nutrition facts
Frequently asked questions
Why does using oil make this banana cake so moist?
Oil creates a tender crumb because it coats the flour proteins differently than butter. Unlike butter which contains water that can evaporate during baking, oil stays liquid and keeps the cake moist for days. The 1 cup vegetable oil in this recipe also adds richness without the need for extra fat or frosting. The bananas' natural moisture works perfectly with the oil to create that signature ultra-tender texture.
Can I substitute butter for the oil in this recipe?
You can try, but the texture will be different. Butter contains water that can make the cake slightly denser. If substituting, reduce butter by ¼ cup (since butter is 80% fat) and add 2 tablespoons milk to compensate. However, the oil version stays moist longer without drying out. For best results, stick with the original recipe—it's designed specifically for that perfect tender crumb.
How do I know when my banana cake is done baking?
Use the toothpick test: insert a toothpick into the center of the cake. If it comes out clean or with just a few moist crumbs (not wet batter), it's done. For 8-inch pans, bake 30-35 minutes; for 9x13-inch pan, bake 40-45 minutes. The edges should be golden brown while the top may still look slightly underdone—this is normal. Never rely on baking time alone since ovens vary.
Can I make this cake without walnuts or coconut?
The cake will still be delicious without the toppings. If you want to add something else, try chopped pecans or a dusting of powdered sugar for a simpler presentation. The toppings are purely for texture and visual appeal—the cake's moisture and flavor come from the batter itself. For a festive touch, you could also add a drizzle of caramel sauce or vanilla glaze.
Why did my cake turn out dense instead of moist?
Overmixing the batter is the most common cause. Mix just until the flour disappears—don't beat for more than 30 seconds after adding dry ingredients. Also check these: underripe bananas (use spotty ones), old baking powder (test with vinegar), or overbaking** (remove when toothpick comes out clean). For next time, let the cake cool completely before slicing—this helps the texture set properly.