Line 15x1 pan (jelly roll pan) with foil and grease with butter (or spray with Pam).
Place down one layer of saltines and set aside (you might need to break some of the saltines so they fit).
In a sauce pan, combine 1 cup butter and 1 cup brown sugar.
Bring to a boil and simmer for about 5 minutes until it starts to caramelize.
Pour over saltines and spread around.
Bake for 7-9 minutes @ 350° F.
Pour 1 bag (2 cups) chocolate chips over the hot caramel. Let melt and spread all over.
Sprinkle toffee chips on top.
Let cool for about 2 hours (or as long as you can stand it!)
Break apart and ENJOY!