Place crackers on a large baking sheet lined with aluminum foil and sprayed with non-stick cooking spray.
In a medium saucepan on medium heat, add the butter and brown sugar. Bring to a boil for 3-4 minutes stirring constantly. The sauce will appear to double in size as it caramelizes.
Remove from heat and using a large serving spoon begin to pour over the crackers.
Place in the oven for 10 -12 minutes.
Remove and pour chocolate chips on top to make an even layer and put back in the oven for 1 min.
Remove from the oven. Using a spatula, spread the chocolate to create a smooth layer over caramel crackers. Spread lightly to make sure the crackers do not move.
Decorate with sprinkles or toppings of your choice.
Place in the fridge for 10-15 minutes to set.
Remove from fridge and bring to room temp. Lift and peel off the aluminum foil.