Rich Butter Wafers
["1 c. sugar", "1 c. butter", "1 egg", "1 tsp. vanilla or 1/2 tsp. grated lemon rind", "2 c. cake flour", "nuts"]
["Beat butter and sugar together. Beat in egg and vanilla. Gradually stir flour into butter mixture.", "Roll into 3/4-inch balls.", "Place them on a greased baking sheet.", "Decorate each cookie with a nut meat.", "Bake them in a moderate oven at 375\u00b0 until edges are light brown."]
["sugar", "butter", "egg", "vanilla", "cake flour", "nuts"]