Easy Banana Cake with Cake Mix

Feature image of a close up view of one piece of Easy Cake Mix Banana Cake.

5 from 3 votes

This Easy Cake Mix Banana Cake turns a simple box of cake mix into a moist, homemade-tasting dessert. Made with everyday ingredients and perfect for using up overripe bananas, it’s quick, budget-friendly, and delicious. Top with your favorite frosting for a sweet finish the whole family will love!

Prep Time5

Cook Time34

Total Time39

Course: Dessert

Cuisine: American

Keyword: banana cake made with box cake mix, easy banana cake

Servings: pieces

Calories: 215kcal

Author: Mindy Boyd

Ingredients

1 box cake mix
1 cup milk
½ cup melted butter
4 eggs
1 ½ cups mashed banana about 3 medium
nonstick cooking spray

Instructions

Preheat and prep: Preheat the oven to 350°F. Spray a 9 x 13-inch baking pan with nonstick cooking spray.
nonstick cooking spray
Mix the batter: In a large mixing bowl, combine all the ingredients with a whisk or large spoon until smooth.
1 box cake mix, 1 cup milk, ½ cup melted butter, 4 eggs, 1 ½ cups mashed banana
Pour into pan: Spread the batter evenly in the prepared cake pan.
Bake: Bake for 34–38 minutes, or until a toothpick inserted in the center comes out clean.
Frost and serve: Let the cake cool completely on a wire rack, then top with your favorite frosting.

Video

Notes

For the best banana flavor use bananas that have lots of brown spots.

I use room temperature eggs and milk to help the cake rise.

Baking time may vary depending on the type of pan that's used and because oven temperatures can vary. Cake is done when the edges turn light brown and start to pull away from the sides of the pan, the top of the cake springs back when lightly touched and a toothpick inserted into the center comes out clean.

The cake in these photos is topped with my Chocolate Pudding Cool Whip Frosting.

Top individual pieces of frosted cake with fresh banana slices right before serving.

Nutritional information is for the cake only and is approximate.

Nutrition