"This easy banana sheet cake is topped with a flavorful icing...."
INGREDIENTS
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Bars:
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1 1/2 cups white sugar
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1 cup sour cream
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1/2 cup butter, softened
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2 eggs
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1 3/4 cups mashed ripe bananas
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2 teaspoons vanilla extract
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2 cups all-purpose flour
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1 teaspoon baking soda
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3/4 teaspoon salt
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1/2 cup chopped walnuts (optional)
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Frosting:
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1/2 cup butter
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4 cups confectioners' sugar
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3 tablespoons milk
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1 1/2 teaspoons vanilla extract