"This recipe is easily doubled. This quick and easy buttercream is an excellent frosting solution if you need something simple. This magical frosting? A bit more work but completely unreal...."
INGREDIENTS
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1 1/2 cups all-purpose flour (7 1/2 ounces)
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1 cup granulated sugar (7 ounces)
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1 1/2 teaspoons baking powder
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1/4 teaspoon salt
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8 tablespoons butter, room temperature
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1/2 cup sour cream, light or regular
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1 large egg, room temperature
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2 large egg yolks, room temperature
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1 1/2 teaspoons vanilla extract