Saltine Crackers - We like to use salted saltines so they help cut the sweetness from the toffee and chocolate. If you use unsalted crackers you may want to sprinkle a bit of salt over the toffee.

Remove from heat and stir in vanilla immediately into the brown sugar mixture. Pour toffee over crackers, spreading as needed to cover crackers in an even layer. Bake toffee crackers for 5 minutes ...

Spread crackers on a regular-sized baking tray with raised edges so the toffee doesn’t spill over ... Break into chunks or cut into diamonds with pizza cutter.

Pour toffee mixture evenly over graham crackers and popcorn mixture. Bake until toffee is slightly darkened in color (the shade of a brown paper bag) and bubbling, 10–12 minutes. Remove from ...