"Buttery nut-filled cookies, coated with a layer of powdered sugar, these classic cookies are everyone's favorite holiday treat!..."
INGREDIENTS
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1 cup butter, softened
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1/2 cup powdered sugar, plus more for rolling
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1 teaspoon vanilla extract
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2 1/4 cups flour
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1/2 teaspoon kosher salt
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3/4 cup finely chopped pecans or walnuts