Grease with butter a 15 x 11 1/2 inch deep jelly roll pan. Line pan with 24 graham crackers.

In a saucepan, bring to boil:

2 sticks real butter
1 c. solid packed brown sugar
1 1/2 c. chopped walnuts

Spread mixture over crackers; let cool. Bake 10 minutes at 350 degrees.