1 1/2 packages of saltines (not boxes)
1/2 cup sugar
1/2 cup brown sugar
1 cube butter (or margarine, some recipes say)
2 cups chocolate chips
Preheat oven to 350 degrees.
Line a cookie sheet with foil then lightly coat with cooking spray.
Lay out saltines neatly (1-2 packages) with no spaces between.
Bring sugar and butter to a boil while stirring over med-high heat. Quickly pour over saltines, covering as many as possible.
Bake for 5 minutes. Remove from oven and cool for a minute. Sprinkle with chocolate chips, spreading evenly after melting.
Put in fridge for 15 minutes or so to set, then break into pieces.