INGREDIENTS
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1 & 1/2 cups all-purpose flour
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1 teaspoon baking powder
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1/2 teaspoon baking soda
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1/2 teaspoon salt
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1/2 cup unsalted butter, melted
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1/2 cup granulated sugar
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1/2 cup packed light brown sugar
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1 large egg
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1 teaspoon vanilla
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2 medium overripe bananas, mashed
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1/2 cup sour cream
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4-6 ounces (3/4 - 1 cup) blueberries