Recipe: Walnut stars | Style at Home

Ingredients

• 1 cup (about 4 ounces) walnuts
• ¼ cup granulated sugar
• 1½ cups all-purpose flour
• ½ cup confectioners’ sugar
• ½ teaspoon baking powder
• ¼ teaspoon salt
• 8 tablespoons (1 stick) chilled unsalted butter, cut into 8 slices
• 1 large egg yolk
• 1 teaspoon pure vanilla extract
• 1 to 2 tablespoons cold water
• 3 ounces bittersweet or semisweet chocolate, chopped