Crisp Squares
["2 sticks butter", "1 egg, separated", "1 c. sugar", "2 c. plain flour, sifted", "1 1/2 c. chopped pecans", "2 tsp. vanilla"]
["Cream butter and sugar.", "Add egg yolk and flour.", "Beat well and spread dough evenly in jelly roll pan (15 x 10-inch).", "Beat egg white slightly.", "Brush top of dough with egg.", "Smooth with fingertips.", "Sprinkle with nuts over dough and press in.", "Do not grease pan.", "Bake at 275\u00b0 for 1 hour.", "While hot, cut squares to keep from crumbling."]
["butter", "egg", "sugar", "flour", "pecans", "vanilla"]