INGREDIENTS
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FOR THE COOKIES
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1 1/2 cups sugar
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1/2 cup (1 stick) unsalted butter, softened
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2 eggs
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1 teaspoon vanilla
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1/2 cup sour cream
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1/4 cup cream cheese
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3/4 teaspoon baking soda
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1/2 teaspoon baking powder
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3/4 teaspoon salt
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4 1/3 cups all-purpose flour, more for dusting
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FOR THE FROSTING
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1/2 cup (1 stick) butter, softened
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1/2 teaspoon vanilla
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2 cups powdered sugar
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3 tablespoons heavy cream
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rainbow sprinkles, optional