Four Tier Delight
["1 c. flour", "1/2 c. margarine", "1 c. pecans, finely chopped", "1/4 c. brown sugar"]
["Mix ingredients together.", "Press into a 9 x 13-inch pan.", "Bake at 350\u00b0 for 10 minutes."]
["flour", "margarine", "pecans", "brown sugar"]