"Pick your favorite filling for this classic sandwich cookie: We tested with peppermint, orange, and lemon extracts and used food coloring to match each flavor...."
INGREDIENTS
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1 cup butter, softened
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1/2 cup granulated sugar
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1/2 teaspoon almond extract
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1/2 teaspoon vanilla extract
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1 large egg
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2 1/4 cups all-purpose flour
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1/2 teaspoon table salt
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1/2 cup butter, softened
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1 (16-oz.) package powdered sugar
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3 to 4 Tbsp. milk
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3/4 teaspoon flavored extract (such as peppermint, lemon, or orange)
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Food coloring
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1/2 cup powdered sugar