Preheat the oven to 350 degrees.

Grease a large rimmed baking sheet.

Place crackers in a single layer, covering the entire baking sheet.

Boil butter and sugar for one minute; pour over crackers.

Bake for 8-10 minutes.

Remove from over and quickly place chocolate chips on top in a single layer.

As chocolate chips melt, spread into an even coating.

Refrigerate until hard (at least 30 minutes) and break into pieces.