Active Time

　　25 min

　　Total Time

　　5 hr

　　

Ingredients

Makes about 3 1/2 dozen cookies

　　1 1/4 cups salted shelled pistachios (not dyed red; 5 1/2 oz)

　　3/4 cup sugar

　　6 tablespoons all-purpose flour

　　5 tablespoons unsalted butter, melted and cooled slightly

　　2 tablespoons Grand Marnier or other orange-flavored liqueur

　　1 teaspoon finely grated fresh orange zest

　　2 tablespoons fresh orange juice

　　

Special Equipment

parchment paper

　　

Step 1

Pulse pistachios and sugar together in a food processor until nuts are finely chopped (but not ground), then stir together with remaining ingredients in a bowl. Spread dough in a 12-inch-long strip on a large sheet of plastic wrap and, starting with a long side, roll up dough in plastic wrap (dough will be very soft). Chill dough on a baking sheet until firm but still malleable, about 1 hour.

　　

Step 2

Preheat oven to 325°F.

　　

Step 3

Roll dough into a 15- by 1-inch log, using plastic wrap as an aid. Halve log crosswise and chill halves, wrapped in plastic wrap, until firm, about 3 hours.

　　

Step 4

Cut 1 half crosswise into 1/8-inch-thick slices with a serrated knife and arrange about 2 inches apart on 2 parchment-lined large baking sheets. Flatten each cookie into a 1 1/2-inch round with the back of a fork or spoon, dipping fork in water and shaking off excess for each cookie.

　　

Step 5

Bake in upper and lower thirds of oven, switching position of sheets halfway through baking, until golden, 8 to 10 minutes total. Cool cookies on sheets 5 minutes, then transfer with a metal spatula to racks to cool completely. Make more cookies with remaining dough on cooled baking sheets (line sheets with clean parchment).

　　Cooks' notes:

　　• Dough log can be chilled up to 5 days or frozen, wrapped in foil as well as plastic wrap, 1 month. If frozen, thaw dough just until it can be sliced.

　　• Cookies keep, layered between sheets of wax paper or parchment (cookies should not overlap), in an airtight container at room temperature 1 week.