Saltine Toffee

1 cup unsalted butter (no margarine allowed)
1 cup brown sugar
2 cups semi-sweet chocolate chips
40 saltine crackers

Preheat oven to 350ºF. Line jelly roll pan or cookie sheet with foil and spray with non-stick spray. Lay a flat layer of crackers out on the foil. Melt the sugar and butter until a boil is reached. Reduce the heat and simmer, uncovered, for 5-6 minutes or until mixture is thickened and sugar is completely dissolved. Pour this mixture over the crackers and spread to coat evenly. Bake for 5-8 minutes, or until the toffee becomes bubbly. After removing the pan from the oven, let it sit for 3-5 minutes. Sprinkle on the chocolate chips, let them soften and melt, and then spread them into an even layer. Chill then break into chunks.