Thumbprints
["2/3 c. oleo", "1/3 c. sugar", "2 egg yolks", "1 tsp. vanilla", "1/2 tsp. salt", "1 1/2 c. flour", "2 slightly beaten egg whites", "3/4 c. chopped walnuts"]
["Cream oleo and sugar.", "Add yolks and mix in vanilla and salt. Gradually add", "flour.", "Shape", "in", "balls", "and dip in egg whites, then in", "walnuts.", "Bake at 350\u00b0 for 5 minutes and push in center with", "thumb.", "Then\tbake", "another", "10 to 12 minutes. Cool and fill with frosting."]
["oleo", "sugar", "egg yolks", "vanilla", "salt", "flour", "egg whites", "walnuts"]