Simple Banana Cake Recipe

This is the best banana cake recipe I’ve ever made. It’s easy to make from scratch, moist, and topped with the simplest cream cheese frosting! This recipe is a goalkeeper!
I’m so happy to share our banana cake recipes since we shared our favorite banana bread recipes. I took inspiration from the popular carrot cake to make sure this cake is very moist and super delicious. I tried it (many times) until I got on board this gem and I’m so glad to share it with you!
What makes this banana cake so special is the use of extra mashed potatoes and melted butter in the batter. This simplifies the process (bye blender, Hello whisk!) and creates a tender, unusually moist cake with a strong banana flavor that exceeds other recipes I’ve tried.
Key Ingredients
- banana: I use more bananas in my banana cake than other recipes (3 medium). For the best cakes, use very ripe bananas. I’m talking about brown and spotted bananas. They are sweeter, making the baked cake soft and moist.
- Melted butter and oil: The butter adds incredible flavor, while 2 tablespoons of oil keeps super moist in the middle. I used avocado, safflower and vegetable oil and it worked very well. The same goes for melted coconut oil, but the baked cake will have a light coconut flavor.
- egg: This cake requires 2 eggs to add flavor and provide some structure for the cake.
- sugar: I like the combination of white sugar and brown sugar. I used 100% brown sugar and while it was delicious, the brown sugar did make it more wet as this cake was already very wet in the middle so the cake was always thick.
- sour cream: This is the last trick in my arsenal. Sour cream adds fat to our cake batter, which makes our banana cake even more tender and moist.
- flour: I use all-purpose flour, but this recipe makes gluten-free banana cakes with spelling flour or your favorite gluten-free flour mixture.
- baking soda: This helps our cake rise. We do not add baking powder (this cake recipe does not require). Check if your baking soda has not been open for more than 6 months (after which it has lost its effectiveness).
- Salt, cinnamon and vanilla extract: These make our cakes stunning, resulting in the teenager’s spiced cake.
- Cream Cheese Frosting: I kept the icing of this cake in the frosting instead of the typical cream cheese frosting. The banana cake tastes so much that when I tested various frostings with it, many people overwhelmed it. So, this shedding frosting is the champion of three ingredients (cream cheese, butter and powdered sugar)! That said, if you like the buttercream frosting in our carrot cake recipe, you can replace it!
The cake batter is as easy as whipping the ingredients together (you only need a few bowls and a whisk). Then I frosted using an electric blender (only 5 minutes). For more recipes for offering bananas, try my Simple Banana Muffins, Spice Banana Pancakes and my fantastic banana pudding!

Relaxed Banana Cake
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This is the best banana cake I have made and it’s easy! I love this cake so much and can’t wait for you to make it. Wait until you have brown bananas. Otherwise, the cake will not have enough banana flavor. The cake for the day was lovely, but I prefer the taste of the next day (more like a banana), which makes it a great cake!
Make 1 (9×9 inches) cake, 12 pieces
You will need
Banana Cake
3 medium bananas, ripe brown spots, 1¼ cup (330g) mashed banana
6 tablespoons (85g) butter, melted and slightly cooled
1½ cups (195g) all-purpose flour, spoon and upgrade
1/4 cup (50g) sugar
1 teaspoon baking soda
1/4 teaspoon fine sea salt
1/4 teaspoon ground cinnamon
3 tablespoons (38g) brown sugar
2 tablespoons vegetable oil
2 teaspoons vanilla extract
2 large eggs
1/4 cup (55g) sour cream
Cream cheese frosting
4.5 oz (128 g) room temperature cream cheese
6 tablespoons (85g) room temperature butter
1½ cups (170g) powdered sugar, if chunky, please filter
direction
1Place the rack in the middle of the oven. Preheat the oven until 350°F (180°C) and lubricate a 9 x 9-inch square baking tray. You can also line it up with parchment paper to make it easier to remove the cake from the pan.
2Prepare the batter: In a large bowl, stir 1 ½ cup all-purpose flour, 1/4 cup granulated sugar, 1 tsp baking soda, 1/2 tsp salt and 1/4 tsp cinnamon.
3Mash the bananas in a separate bowl until almost smooth. Then, stir in 3 tablespoons brown sugar, 2 tablespoons oil, 2 teaspoons vanilla extract, 2 eggs, and 1/4 cup sour cream.
4Add the mashed potato banana mixture and melted butter to the bowl and stir with dry ingredients until combined.
5Bake cake: Sprinkle the batter in the prepared pan to smooth the top and bake until gently pressed on the top for 25 to 35 minutes.
6Remove the cake from the oven and cool in the pan for 10 minutes before carefully transferring the cake to a cooling rack. Cool completely before frosting.
7Frosting: In a large bowl, beat cream cheese and butter with a medium speed hand-held blender until smooth and creamy, lasting about 1 minute.
8Buff in 1/4 cup powdered sugar at a time until combined. Continue to beat at medium speed for 30 to 45 seconds until the frosting is light and fluffy.
9When the banana cake is completely cool, the top frosts, spinning with cream cheese. Use as much frosting as possible.
Adam and Joanne’s Tips
- storage: Frosted banana cake lasts for 2 to 3 days at room temperature. I cover it with plastic wrap or use a cake goalkeeper or a large bowl upside down to cover the cake. You can refrigerate the uncovered cake layer for up to 5 days or freeze it for up to 3 months. Melt in the refrigerator overnight before adding the frosting.
- Salted Butter: I usually use salted butter for this recipe (cakes and frosting). If you have unsalted butter, add 1/8 teaspoon of extra salt to the cake batter and pinch a pinch in the frosting.
- Room Temperature Butter and Cream Cheese: You will need this frosting. If I forgot to remove them from the refrigerator in advance, I would use the oven’s “proof” setting, which makes the oven between 70°F and 90°F. I put the butter and cream cheese in it and then turn off the oven after 20 minutes. In about 40 minutes, the butter and cream cheese will be soft enough to be used in the recipe.
- Measuring flour: Weigh it, or use the “spoon and horizontal” method: suede, pour it into a measuring cup, and use the flat edges to get off the top.
- Make bigger cakes: Double the recipe and bake in a 9×13-inch baking dish. Expected baking time to be slightly longer (40 to 50 minutes)
- The nutrition facts provided below are estimates.
Nutrition per serving
Service size
1 piece (12 pieces in total)
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Calories
347
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Total fat
19.2g
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Saturated fat
11.9 grams
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cholesterol
73.9mg
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sodium
205.1mg
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carbohydrate
41.1g
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Dietary fiber
1.2 g
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Total sugar
25.2g
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protein
4.1g
We are Adam and Joanne, a couple who are passionate about cooking and sharing delicious, reliable recipes since 2009. Our goal? Inspire you to enter the kitchen and cook fresh and delicious meals confidently.
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