Banana Cake

5 from 16 votes

This Banana Cake recipe will knock your socks off. It is so easy to make, but moist, perfect, and delicious. It comes with a fast chocolate frosting that is drool worthy.

Prep Time15

Cook Time30

Cooling time1

Total Time1 45

Servings: pieces

Calories: 292kcal

Author: Lisa Longley

Ingredients

Banana Cake

2 1/2 cups all purpose flour see note (300 grams)
1 1/4 teaspoon baking powder (5 grams)
1 teaspoon baking soda (6 grams)
1/2 teaspoon salt (3 grams)
3 very ripe bananas mashed well
1 cup granulated sugar (198 grams)
1/4 cup dark brown sugar packed (53.25 grams)
3/4 cup vegetable oil (177.44 ml)
4 large eggs at room temperature and lightly whisked
1/4 cup sour cream (59.15 ml)
1 teaspoon vanilla extract (4.93 ml)

Chocolate Frosting

8 tablespoons unsalted butter melted (113 grams)
4 cups powdered sugar (454 grams)
1/4 cup cocoa powder (21 grams)
1 teaspoon vanilla extract (4.93 ml)
1/4 cup skim milk (or a higher fat content milk) (59.15 ml)

Instructions

Banana Cake

Preheat your oven to 350 degrees Fahrenheit. Spray a 9 by 13 baking dish with cooking spray.
In a large mixing bowl, whisk together the flour, baking soda, baking powder, and salt.
2 1/2 cups all purpose flour, 1 1/4 teaspoon baking powder, 1 teaspoon baking soda, 1/2 teaspoon salt
In a medium bowl, whisk together the mashed bananas, granulated sugar, brown sugar, vegetable oil, eggs, sour cream, and vanilla extract.
3 very ripe bananas, 1 cup granulated sugar, 1/4 cup dark brown sugar, 3/4 cup vegetable oil, 4 large eggs, 1/4 cup sour cream, 1 teaspoon vanilla extract
Gently fold the wet ingredients into the dry ingredients. Be careful not to overmix.
Pour the cake batter into the prepared pan. Bake for 28 to 32 minutes or until a toothpick inserted into the center of the cake comes out with just a few crumbs.

Chocolate Frosting

Once the cake has fully cooled, mix together the melted butter, powdered sugar, cocoa powder, vanilla extract, and milk. Whisk until smooth. Pour over the cake and spread it out. Allow a few minutes to set before cutting the cake.
8 tablespoons unsalted butter, 4 cups powdered sugar, 1/4 cup cocoa powder, 1 teaspoon vanilla extract, 1/4 cup skim milk

Video

Notes

A key to this recipe is measuring the flour correctly. If you don't have a kitchen scale, whisk it in the container it is stored in, spoon it into a dry measuring cup, and level it off with the flat handle of a spatula. See my step-by-step tutorial here: How to Measure Flour.

Nutrition