The Best Christmas Toffee Bars are a delicious twist on Christmas Crack and the taste is amazing. One bit of these sweet and salty, crispy and crunchy toffee bars and you are going to be in heaven.
Lay a single layer of graham crackers out on onto the prepared baking sheet, feel free to cut crackers in half to fit into tight corners.
In a medium saucepan, combine butter, sugar, vanilla and salt. Cook over medium heat, whisking constantly, until butter has melted and the mixture is light brown in color, about 10-15 minutes.
Immediately spread the hot mixture evenly over the graham crackers.
Sprinkle with chocolate chips. Let sit for 1-2 minutes. After 1-2 minutes, spread the chocolate in an even layer until smooth. Drizzle frosting to decorate and top with M&M's.
Let cool about an hour. Then break into pieces and serve.