One Egg Cake
["1 1/3 c. flour", "2 tsp. baking powder", "1/4 tsp. salt", "1/4 c. butter or margarine", "3/4 c. sugar", "1/2 tsp. vanilla", "1 egg, well beaten", "1/2 c. milk"]
["Sift together flour, baking powder and salt.", "Cream butter until light and fluffy.", "Gradually add the sugar, vanilla and egg to the butter.", "Stir in half the flour mixture and 1/4 cup milk. Add the rest of the flour mixture and milk.", "Bake at 350\u00b0 for about 25 minutes.", "Makes one 8 x 8-inch layer or 12 cupcakes."]
["flour", "baking powder", "salt", "butter", "sugar", "vanilla", "egg", "milk"]