First, preheat oven to 375 degrees. Line a 15” x 10” x 1” pan with parchment paper or a silicone mat. Line up crackers in a single layer on prepared sheet.
Next, melt butter and brown sugar in a small saucepan. For best results, use a candy thermometer. Bring to a boil and boil for 2 to 3 minutes while stirring (270 to 290 degrees if using a candy thermometer). then Immediately pour over crackers and spread evenly with a spatula.
Bake 5 minutes in preheated oven. Remove from oven. Toffee will appear wet, but don't worry. It hardens as it cools.
Immediately sprinkle chocolate chips over hot toffee. Let melt for a few minutes. Spread over hardened toffee. (If the chocolate chips didn't melt enough, pop it back in the oven briefly until melted, and spread after that).
Add sprinkles or toppings of choice. Let cool completely for at least 15 minutes. Cut or break into squares.
Store your Christmas Crack in an airtight container or freezer bag to keep it fresh. It can be stored at room temperature or in the refrigerator to extend it's shelf life.
Notes
• How long does cracker toffee stay fresh? Cracker toffee can stay fresh for about a week if stored properly in an airtight container. Be sure to keep it in a cool, dry place to maintain its texture. It will keep in the refrigerator up to two weeks.• Can I freeze cracker toffee? Yes, you can freeze cracker toffee. Place it in an airtight container or freezer-safe container or wrap it tightly in plastic wrap and store it in the freezer for up to several months. Thaw it at room temperature before serving.