Place crackers on foil-lined large cookie sheet.

Melt butter and sugar in saucepan over medium-high heat. Heat to boiling; boil until sugar is completely dissolved. Spread over crackers.

Bake for 10 minutes.

Remove from oven and immediately sprinkle with chocolate chips; let stand for 3 to 5 minutes then, using the back of a spoon, spread melted chocolate over baked layer.

Option Sprinkle on top of chocolate layer a crushed snicker or butterfingers candy bar. Cool for about 8 hours and break or slice into pieces.