Butterscotch Chocolate Squares
["2/3 c. shortening", "2 1/4 c. brown sugar", "3 eggs", "2 3/4 c. flour", "2 1/2 tsp. baking powder", "1/2 tsp. salt", "1 pkg. chocolate bits", "1 c. broken nuts (optional)"]
["Melt shortening.", "Add sugar; cool.", "Add eggs, one at a time, beating well after each.", "Add other ingredients; blend well.", "Pour into greased 11 x 15 x 3/4-inch pan.", "Bake at 350\u00b0 for 25 to 30 minutes.", "Cut into squares when almost cool."]
["shortening", "brown sugar", "eggs", "flour", "baking powder", "salt", "chocolate bits", "nuts"]