Pineapple-Chocolate Squares
["1/2 c. margarine", "1 1/2 c. sugar", "1 tsp. vanilla", "3 eggs", "1 c. sifted all-purpose flour", "1 tsp. baking powder", "1/2 tsp. salt", "1/2 tsp. cinnamon", "1/4 c. chopped pecans", "2 (1 oz.) sq. unsweetened chocolate, melted and cooled", "1 (8 3/4 oz.) can (1 c.) crushed pineapple, well-drained"]
["Cream first 3 ingredients until fluffy; beat in eggs.", "Sift together dry ingredients; stir into creamed mixture.", "Divide batter; to 1/2, add nuts and chocolate; spread into greased 9 x 9 x 2-inch pan.", "Add pineapple to remaining batter; spread carefully over chocolate layer.", "Bake at 350\u00b0 for about 30 minutes, or until done.", "(Can also use 8 x 8 x 2-inch pan.)", "Cut in squares when cool."]
["margarine", "sugar", "vanilla", "eggs", "flour", "baking powder", "salt", "cinnamon", "pecans", "unsweetened chocolate", "pineapple"]