Cream Cheese Cookies
["1/2 c. butter", "1 (3 oz.) pkg. cream cheese", "1 c. flour", "1/2 tsp. baking powder", "1/4 tsp. vanilla", "1 egg, separated", "walnuts (finely chopped, combined with sugar)"]
["Cream butter and cream cheese.", "Add egg yolk and vanilla; add dry ingredients.", "Chill dough overnight.", "Roll very thin.", "Cut with cookie cutters.", "Brush with egg white and sprinkle with nuts and sugar.", "Bake about 10 minutes in 350\u00b0 oven on ungreased cookie sheet."]
["butter", "cream cheese", "flour", "baking powder", "vanilla", "egg", "walnuts"]