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Banana Sheet Cake with Browned Buttercream Frosting

Prep 30 min
Total 2 hr 0 min
Servings 24

Sorry, not sorry, banana bread and banana muffins, this is officially our new favorite way to use bananas past their prime. Once you try this easy banana sheet cake with buttercream made from browned butter (hello, brilliant!) you’ll totally see why. MORE+ LESS-

By Tablespoon Kitchens

June 30, 2017

Ingredients

Cake

box Betty Crocker™ Super Moist™ yellow cake mix

cup water

tablespoons vegetable oil

eggs

1 1/2

teaspoons ground cinnamon

cup mashed very ripe bananas (about 2 medium bananas)

Frosting

3/4

cup butter

4 1/2

cups powdered sugar

1/2

teaspoon vanilla

to 6 tablespoons milk

Toppings

Chopped pecans, dried banana chips or fresh banana slices, if desired

Steps

Hide Images

1

Heat oven to 350°F. Spray bottom of 15x10x1-inch pan with cooking spray.
2

In large bowl, beat cake mix, water, oil, eggs and cinnamon with electric mixer on medium speed 2 minutes, scraping bowl occasionally. Stir in mashed bananas; spread in pan. Bake 20 to 25 minutes or until toothpick inserted in center comes out clean. Cool completely, about 1 hour.
3

In 2-quart saucepan, heat butter over medium heat 5 to 8 minutes, stirring frequently, just until light golden brown. Watch carefully; butter can burn quickly. Remove from heat; pour into large bowl, and let stand 5 minutes.
4

Add powdered sugar, vanilla and 4 tablespoons milk; beat until smooth and creamy. If frosting is too stiff to spread, add additional milk, 1 teaspoon at a time. Spread frosting over cooled cake. Before serving, sprinkle with Toppings. To serve, cut into 6 rows by 4 rows.

Expert Tips

For best success with this recipe, be sure to use a 15x10-inch pan with at least a 1-inch rim so there is less risk of cake batter spilling over while baking.
Peel and freeze your overripe bananas in a large resealable freezer bag. Take them out of freezer to refrigerator the night before, and you’ll have bananas ready to mash for your recipe. Drain any excess liquid before mashing, if necessary.

Nutrition Information

Nutrition Facts

Serving Size: 1 Serving

Calories: 240
Calories from Fat: 70

% Daily Value

Total Fat: 8g; 13%
Saturated Fat 4 1/2g 22% Trans Fat 0g
Cholesterol: 40mg; 13%
Sodium: 180mg; 8%
Potassium: 60mg; 2%
Total Carbohydrate: 40g; 13%
Dietary Fiber 0g 0% Sugars 31g
Protein: 1g

% Daily Value*:

Vitamin A: 4%; 4%
Vitamin C: 0%; 0%
Calcium: 4%; 4%
Iron: 2%; 2%

Exchanges:

1/2 Starch; 0 Fruit; 2 Other Carbohydrate; 0 Skim Milk; 0 Low-Fat Milk; 0 Milk; 0 Vegetable; 0 Very Lean Meat; 0 Lean Meat; 0 High-Fat Meat; 1 1/2 Fat;