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Best Banana Cake for a Crowd

This is absolutely the best banana cake I’ve ever tasted! It’s easy to make, moist and dreamy with a browned butter frosting and because it’s a sheet cake, it will serve a crowd easily!

Banana Sheet Cake in pan and on plate

Easy to make Browned Butter Frosting in pan on stove

This time of year I’m sort of chocolate-d out, if that’s even possible, so I wanted to make a dessert that reminded me of summer.  

If you love yummy banana desserts this banana sheet cake is a must-try!

It’s not hard to make, it’s moist, tastes delicious and will serve a crowd  which makes it perfect for pot lucks or dinner parties.

I was a little worried about making the Browned Butter Frosting since I had never made it before but it was super easy and I made a video so you can see for yourself.

Banana Sheet Cake with Browned Butter Frosting cut in squares on serving tray with milk

Banana Sheet Cake with Browned Butter Frosting
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Cake Ingredients

1 ½ cups sugar

1 cup sour cream

½ cup butter, softened

2 eggs

1 ¾ cups (3 or 4) ripe bananas, mashed

2 teaspoons vanilla

2 cups flour

1 teaspoon baking soda

¾ teaspoon salt

Frosting Ingredients

½ cup butter

4 cups powdered sugar

1 ½ teaspoons vanilla

About 3 tablespoons milk or half and half


    Cake Directions
  1. Heat oven to 375 degrees.
  2. Grease and flour 10x15 jelly roll pan.
  3. Beat first four ingredients with mixer until creamy.
  4. Blend in bananas and vanilla on medium speed for one minute.
  5. Add dry ingredients and blend one minute.
  6. Spread in pan.
  7. Bake 20 to 25 minutes until golden brown.
  8. Cool and frost immediately with Browned Butter Frosting.
  9. Cut into squares and serve.
  10. Frosting Directions
  11. Heat butter in saucepan over medium heat past the melting point until it is boiling and light brown.
  12. Remove from the heat and immediately add the remaining ingredients. This should be thicker than a glaze, and thinner than frosting.
  13. Smooth over the top of the banana sheet cake immediately.
  14. Serve!



3288 cal


5 g


792 g


40 g
Click Here For Full Nutrition, Exchanges, and My Plate Info
Banana Sheet Cake with Browned Butter Frosting in pan being cut into squares

So what are your favorite banana recipes? I would love to hear about them!

Banana Sheet Cake cut into squares

Browned Butter Frosting Video

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