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Chocolate Banana Celebration Cake

Chocolate Banana Celebration Cake

This cake is perfect for a variety of celebrations including birthdays, anniversaries or a job promotion.

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1 hr
Prep Time
04 hrs 35 min
Total Time



1 (15.25- to 16.5-ounce) package yellow cake mix

3 to 4 (1 1/4 cups) very ripe bananas, mashed

1 cup sour cream

1/4 cup vegetable oil

3 large Land O Lakes® Eggs

2 (1-ounce) squares unsweetened chocolate, melted, cooled slightly

2 teaspoons vegetable oil


6 cups powdered sugar

3/4 cup Land O Lakes® Butter, softened

1 tablespoon light corn syrup

2 teaspoons vanilla

5 to 6 tablespoons Land O Lakes® Half & Half


Mini pastel colored decorator sprinkles or decorator sugars

Large gumballs

Peel-apart licorice

Curling ribbon, if desired

How to make

  1. STEP 1

    Heat oven to 350°F. Line 13x9-inch baking pan with aluminum foil; grease and flour foil. Set aside.

  2. STEP 2

    Combine all cake ingredients except chocolate and oil in bowl; beat at medium speed until well mixed. Reserve 2 cups batter; set aside. Spread remaining batter into prepared pan.

  3. STEP 3

    Combine melted chocolate and oil in bowl until well mixed. Stir into reserved batter; mix well. Drop by spoonfuls over batter in pan; using table knife, swirl chocolate batter into banana batter.

  4. STEP 4

    Bake 33-38 minutes or until toothpick inserted in center comes out clean. Cool completely. Freeze 1 hour.

  5. STEP 5

    Meanwhile, combine all frosting ingredients except half & half in bowl. Beat at medium speed until well mixed. Continue beating, adding enough half & half for desired spreading consistency.

  6. STEP 6

    Remove cake from freezer; carefully invert onto large 15x10-inch platter. Frost top and sides with about 2 1/2 cups frosting. Place remaining frosting in pastry bag fitted with large 3/4-inch star tip. Pipe large stars onto frosting on outside edge of cake. Sprinkle with decorator sprinkles.

  7. STEP 7

    Place 7 or 8 large gumballs on cake for balloons. Place licorice pieces under gumballs for strings. “Tie” strings with licorice, if desired.

  8. STEP 8

    Let stand at room temperature for 2 hours before serving.

Tip #1

- Freezing the cake for 1 hour makes it easier to work with. A frozen cake helps reduce the risk of cracks occurring in the cake as it is inverted onto a platter. It is also easier to frost.

Tip #2

- If you don’t have a large platter, cover a large sturdy piece of cardboard with aluminum foil.

Nutrition (1 serving)

550 Calories
24 Fat (g)
75 Cholesterol (mg)
340 Sodium (mg)
84 Carbohydrates (g)
2 Dietary Fiber
5 Protein (g)
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