Spray and then line a jelly roll pan (17 x 13 is best) with foil.

Cover the pan with one layer of small rectangles of graham crackers.

In a sauce pan boil until frothy:

1 stick butter

1 stick margarine

1 C. brown sugar

       Milk chocolate chips (optional)

Pour over top of crackers.  

Sprinkle chopped pecans (about 1 C.) over the top.

Bake at 350 8-12 min. until brown (make sure it’s brown)

The mixture will bubble again in the oven.  Remove. 

Sprinkle milk chocolate chips (optional)  on top immediately.  Melt & spread.   

Let cool slightly, break into pieces, & place on waxed paper to cool.