Sand Tarts
["1/2 lb. margarine (room temperature)", "1/2 c. sugar", "1 egg", "3 c. flour", "1/2 tsp. salt", "1/2 tsp. baking powder", "2 tsp. vanilla", "1 c. chopped nuts (add as you roll into ball)"]
["Cream butter and sugar.", "Mix in other ingredients.", "Roll into balls.", "Bake at 350\u00b0 for 13 to 15 minutes, until lightly brown. Makes 3 dozen.", "Cool.", "Roll in powdered sugar."]
["margarine", "sugar", "egg", "flour", "salt", "baking powder", "vanilla", "nuts"]