Sweet heaven delight

2    margarine
      2 c  flour
      1 c  Pecans; chopped
    1/2 c  Powdered sugar
           Filling:
      2    8 oz pkgs cream cheese
      2 c  Whipped topping
      2 c  Powdered sugar
      2 c  Cooked sweet potato puree
           Topping:
           Whipped topping
           Pecans; chopped
 
  Recipe by: Sweet Potato Festival, Vardamon, Mississippi, 1994
  Melt margarine, add flour, nuts and sugar.  Press into 9 X 13 inch baking p
  
   Bake 15 minutes at 375 degrees or until lightly browned. Combine filling
  ingredients, mix well and spread over cooled first layer. Top with a layer
  whipped topping and sprinkle with chopped pecans.