PISTACHIO SHORTBREAD

Pistachio Shortbread image

Provided by Melissa Clark

Yield Makes about 60 cookies

Number Of Ingredients 7

1 1/2 cups all purpose flour
1/2 cup plus 2 tablespoons powdered sugar
1/2 teaspoon salt
3/4 cup (1 1/2 sticks) chilled unsalted butter, cut into 1/2-inch cubes
1/2 cup natural unsalted pistachios, lightly toasted, chopped
1 large egg yolk
3/4 teaspoon vanilla extract

Steps:

Mix flour, powdered sugar, and salt in processor. Add butter, pistachios, egg yolk, and vanilla. Using on/off turns, mix until moist ball forms. Transfer dough to work surface. Divide dough in half. Form each dough half into 8 x 1 1/4-inch log (if dough is too soft, chill until firm, about 30 minutes). Wrap logs in plastic; refrigerate until firm, about 4 hours. DO AHEAD Can be made 5 days ahead; keep chilled.
Preheat oven to 325°F. Slice logs into 1/4-inch-thick rounds, rolling log after every few slices to retain round shape. Place rounds on ungreased baking sheets, spacing 1 inch apart. Bake shortbread until barely golden, about 18 minutes. Cool shortbread on baking sheets. DO AHEAD Shortbread can be made up to 4 days ahead. Store shortbread in airtight container at room temperature.