Blueberry Nut Crunch
["1 1/2 c. flour", "1/2 c. light brown sugar", "1 1/2 sticks margarine, softened", "1 1/2 c. chopped pecans"]
["Mix together and spread into a 13 x 9 x 2-inch pan.", "Cook for 20 minutes at 350\u00b0."]
["flour", "light brown sugar", "margarine", "pecans"]