Skip to Content

Banana Sheet Cake with Browned Buttercream Frosting

  • Save Recipe
  • Prep 30 min
  • Total 2 hr 0 min
  • Servings 24
  • Save
  • Print
  • Pinterest
  • Facebook
  • Email
Ready to make?
  • Save
  • Share
  • Keep Screen On
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.
Updated Jun 30, 2017
  • Save
  • Share
  • Keep Screen On



  • 1 box Betty Crocker™ Super Moist™ Yellow Cake Mix
  • 1 cup water
  • 2 tablespoons vegetable oil
  • 3 eggs
  • 1 1/2 teaspoons ground cinnamon
  • 1 cup mashed very ripe bananas (about 2 medium bananas)


  • 3/4 cup butter
  • 4 1/2 cups powdered sugar
  • 1/2 teaspoon vanilla
  • 4 to 6 tablespoons milk


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


  • 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

  • tip 1
    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.
  • tip 2
    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

No nutrition information available for this recipe
© 2024 ®/TM General Mills All Rights Reserved