INGREDIENTS
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1 cup plus 2 tablespoons cake flour
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1/2 teaspoon baking powder
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1/2 teaspoon baking soda
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1/4 teaspoon fine salt
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1 teaspoon ground cinnamon
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1/2 cup unsalted butter, softened
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1/4 cup granulated sugar
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1/4 cup light brown sugar
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1/4 cup sour cream
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2 teaspoons vanilla extract
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2 large eggs
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2 large ripe bananas, peeled, and mashed
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8 ounces cream cheese, softened to room temperature
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4 tablespoons unsalted butter, softened to room temperature
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1 pound confectioners’ sugar (about 3 3/4 cups), sifted
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2 teaspoons vanilla extract