"This recipe makes plenty of cookies, so bundle up extras (with green ribbon, of course) to send home with guests...."
INGREDIENTS
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1 1/2 cups all purpose flour
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1/2 cup plus 2 tablespoons powdered sugar
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1/2 teaspoon salt
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3/4 cup (1 1/2 sticks) chilled unsalted butter, cut into 1/2-inch cubes
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1/2 cup natural unsalted pistachios, lightly toasted, chopped
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1 large egg yolk
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3/4 teaspoon vanilla extract