2 c. sugar
1/2 c. butter
1 c. Carnation evaporated milk
3/4 c. all-purpose flour
1 tsp. vanilla
1 c. finely crushed graham crackers
1 (6 oz.) pkg. (1 c.) Nestle's semi-sweet chocolate chips
1 c. chopped walnuts

Combine in saucepan. Melt the butter first, then add the milk and sugar. Bring to a full boil, stirring occasionally. Boil hard for 5 minutes.