Preheat oven to 350ºF.
Grease an 11" x 16" jelly roll pan.
Line entire pan with 1 layer of saltine crackers.
In a medium sauce pan, bring butter and brown sugar to a low boil
Simmer for 3 minutes, or until mixture is very gooey and sugar is completely disolved.
Pour caramel mixture over crackers and spread with spatual until fully covered.
Bake crackers in preheated oven for 5 minutes.
Sprinkle chocolate chips over crackers immediately after removing pan from oven. Let sit for a couple of minutes until chocolate is melty.
Spread melted chocolate over crackers with spatual.
Sprinkle optional toppings (sprinkles, nuts, chopped candies, etc.) into melted chocolate.
Put entire pan into the freezer for 1 hour, or until the chocolate hardens.
Once chocolate has completely hardedn, remove pan from freezer and use a metal spatual to break up the crackers .
Store Christmas Candy in an airtight container or freeze for later.