Simple Banana Cake with Sour Cream Frosting
This post may contain affiliate links. Read our disclosure policy.
A few weeks ago, I had some bananas that I needed to turn into something. I wanted to make a sweet treat and this simple banana cake is what I ended up creating. Delicious. I think my husband finished off half the cake himself.
Turn a simple cake mix into a delectable dessert can be both fun and easy! The cake is moist and includes the perfect amount or banana flavor. The sour cream frosting was the perfect accompaniment.
The sour cream gave the sweet frosting just enough tang. You could even turn the banana cake into a sheet cake. Just be sure to double the frosting.
Ingredients to make Simple Banana Cake with Sour Cream Frosting
- VANILLA CAKE MIX
- WATER
- OIL
- LARGE EGGS
- BAKING SODA
- BAKING POWDER
- VERY RIPE BANANAS
- POWDERED SUGAR
- SOUR CREAM
- BUTTER
- VANILLA EXTRACT
How to Make Simple Banana Cake recipe
Start by pouring the vanilla cake mix into a large bowl. Add water, oil, eggs, baking soda, and baking powder. Use an electric mixer to beat the mixture on medium speed for 2 minutes until it’s smooth and well-combined. Next, blend mashed bananas into the batter until they fully incorporate, adding a moist, rich flavor.
Prepare your baking pan by greasing it and dusting it lightly with flour to prevent sticking. Pour batter into a 9-inch x 13-inch cake pan and bake in a preheated oven according to the cake mix box’s instructions. Bake until a toothpick inserted comes out clean. Allow to cool on a wire rack.
While the cake is cooling, make the frosting by mixing powdered sugar, sour cream, butter, and vanilla in a separate bowl. Beat with your mixer until the frosting is smooth and fluffy. Once your cake has cooled completely, spread this creamy frosting over the top for a sweet finish. Store the frosted cake in the refrigerator to keep it fresh.
Frequently Asked Questions
Can I use any type of cake mix?
Yes, while vanilla cake mix is recommended for its complementary flavor with bananas, you can use any light-colored cake mix such as yellow or white.
How ripe should the bananas be?
Use overripe bananas as they are sweeter and mash more easily, enhancing the moistness and flavor of the cake.
Can I add nuts or chocolate chips?
Absolutely! Stir in chopped nuts like walnuts, pecans, or chocolate chips to the batter before baking for added texture and flavor.
How should I store the cake?
Store the cake in the refrigerator. The sour cream frosting keeps best when chilled, and it helps maintain the moisture of the cake.
FOR MORE RECIPES LIKE THIS, TRY:
- Banana Layer Cake
- Peanut Butter Banana Bread
- Banana Bread French Toast
- Blueberry Banana Cake with Lemon Cream Cheese Frosting
Simple Banana Cake with Sour Cream Frosting
Real Mom Kitchen
Equipment
Ingredients
- 1 box vanilla cake mix
- ¾ cup water
- ¼ cup oil
- 3 whole eggs
- ¾ tsp. baking soda
- 1 tsp baking powder
- 4 very ripe mashed bananas
- 2 ½ cup powdered sugar
- â…“ cup sour cream
- ¼ cup butter softened
- ¾ tsp. vanilla
Instructions
- In a large bowl, add the cake mix, water, oil, eggs, baking soda, and baking powder.
- Beat with a mixer for 2 minutes on medium speed. Add bananas and blend well.
- Grease & flour a 9 x 13 pan. Add batter to the pan and bake following the instructions on box.
- Cool cake after baking.
- In another bowl, add the powdered sugar, sour cream, butter, and vanilla. Beat with an electric mixer for 2 minutes, or until smooth and fluffy.
- Frost cake with frosting. Store cake in the fridge.
