Shortbread
["2 c. flour", "3/4 c. sugar", "1/4 tsp. salt", "1 c. soft margarine", "1 egg yolk", "1 tsp. vanilla"]
["Mix dry ingredients.", "Add remaining ingredients.", "Flour hands and mix until it forms a ball; divide in half.", "Grease and flour 2 pie pans or square pans.", "Press dough into pans to cover just the bottom.", "Prick with a fork all over.", "Bake at 375\u00b0 for 20 to 25 minutes.", "Watch carefully.", "Cut into pieces and sprinkle with powdered sugar.", "May serve with fruit of choice after baked."]
["flour", "sugar", "salt", "margarine", "egg yolk", "vanilla"]