CARAMEL: Position a rack in the center of the oven and preheat the oven to 350ºF. Line a baking sheet with a silicone mat or parchment paper, trust me, you don’t want to skip this! Place the saltine cracker side by side, in a single layer on the baking sheet; set aside. Melt the butter and brown sugar together in a saucepan until the sugar dissolves, stirring as required until the caramel comes to a boil. Once it boils, don’t stir it, just let it cook for 3 minutes. Carefully pour the caramel over the saltines and make sure all the crackers are covered in the caramel, using an offset spatula. Bake for 8 minutes.

CHOCOLATE: Pull the baking sheet out of the oven and immediately top with the chocolate chips. Let the chocolate sit for a minute and heat through, then spread using an offset spatula. If all of the chocolate doesn’t melt right away, pop the baking sheet back in the oven for roughly 1 minute or until the chocolate spreads easily. 

DECORATE: Top with chopped nuts and heath toffee bits. Melt the white chocolate in the microwave (see notes) and drizzle on top; sprinkle with Maldon sea salt if desired. Let cool for several minutes before placing it in the refrigerator to cool for at least 2 hours or pop it into the freezer for roughly 30 minutes if you want to have them ready to eat quicker!