Put whole soda crackers in greased jelly roll (11 x 15 inch) pan

Boil 1 cup butter and 1 cup brown sugar for 3 minutes, stirring constantly. Pour over crackers and bake at 400 degrees for 5 minutes. Cool for 2 to 3 minutes.

Spread with 12 ounces milk chocolate chips and sprinkle with 1 cup chopped nuts if desired.