Lemon Squares
["1 c. flour", "1/3 c. butter", "2 eggs", "1 c. brown sugar", "1/8 tsp. baking powder", "1/2 tsp. vanilla", "1/2 c. chopped nuts"]
["Mix flour and butter until texture of crumbs.", "Spread into a buttered 7 x 9-inch", "pan.", "Press until firm.", "Bake for ten minutes in a preheated 350\u00b0 oven."]
["flour", "butter", "eggs", "brown sugar", "baking powder", "vanilla", "nuts"]