Congo Squares
["2 3/4 c. sifted flour", "2 1/2 tsp. baking powder", "1/2 tsp. salt", "2/3 c. shortening", "about 1/2 tsp. vanilla", "1 lb. brown sugar", "3 eggs", "1 c. nuts", "1 pkg. Nestle chocolate or butterscotch chips"]
["Melt shortening and add brown sugar.", "Stir until well mixed. Cool slightly and add eggs, one at a time, beating well after each addition.", "Sift flour with baking powder and salt and add to first mixture.", "Add vanilla, then nuts and chocolate.", "Spread in greased pan, 10 x 15-inch, and bake at 350\u00b0 for 30 minutes."]
["flour", "baking powder", "salt", "shortening", "vanilla", "brown sugar", "eggs", "nuts", "chocolate"]