4 Layered Dessert
["1 1/2 c. flour", "3/4 c. margarine", "3/4 c. chopped pecans"]
["Mix well (will be crumbly) and press into bottom of a 9 x 13-inch baking dish.", "Bake at 350\u00b0 for 20 minutes.", "Let cool completely."]
["flour", "margarine", "pecans"]