Preheat oven to 325 F
Arrange your crackers on a cookie sheet. I like to line it with foil paper to make clean up easier.
Over medium heat melt butter and sugar together. Allow to boil for about 4 minutes.
Remove from heat and stir in vanilla.
Pour over crackers and spread evenly with a spatula.
Bake for 10 minutes.
Top with chopped candy melts, pretzels, and sprinkles.