Ingredients

  • 1 cup (2 sticks) unsalted butter, room temperature
  • 2/3 cup powdered sugar
  • 2 large egg yolks
  • 4 teaspoons vanilla extract
  • 2 cups all purpose flour
  • 1/2 teaspoon salt
  • 1 1/2 cups finely chopped toasted hazelnuts (about 6 ounces)
  • 4 ounces semisweet chocolate, melted

Method

  • Preheat oven to 325F.
  • Line 2 large baking sheets with parchment paper.
  • Beat butter in large bowl until creamy.
  • Gradually add sugar, beating until fluffy.
  • Beat in yolks and vanilla.
  • Beat in flour and salt.
  • Stir in nuts.
  • Transfer dough to work surface.
  • Flatten into disk.
  • Wrap in plastic; freeze until cold, about 10 minutes.
  • Roll out dough on floured surface to 1/3-inch thickness.
  • Using 2- to 3-inch star cookie cutter, cut out cookies.
  • Transfer to baking sheets, spacing 1 inch apart.
  • Gather dough scraps; reroll dough and cut out additional cookies.
  • Bake cookies until pale golden (rotate baking sheets after 15 minutes), about 20 minutes.
  • Transfer cookies to rack; cool.
  • Spoon chocolate into small plastic bag.
  • Cut off tip from 1 bottom corner of bag to allow small ribbon of chocolate to come out.
  • Drizzle chocolate over cookies.
  • Let cookies stand until chocolate is set.
  • (Can be made ahead.
  • Store in airtight container at room temperature up to 1 week or freeze up to 1 month.)