Crunchy-Coated Lemon Fingers

• 1 cup butter, at room temperature
• 3/4 cup brown sugar
• 1 egg yolk
• 1/2 teaspoon salt
• 1 teaspoon grated lemon peel
• 1 tablespoon lemon juice
• 2 1/3 cups sifted flour
• 1 egg white, slightly beaten
• 1 cup chopped walnuts

Instructions:
Preheat oven to 375F. Grease cookie sheets or line with parchment paper. Cream butter, sugar, and egg yolk together. Add salt, lemon peel, juice, and flour; beat well. Shape dough into fingerlike rolls. Dip in egg white; roll in nuts. Bake at 375F for 10 minutes.