Preheat oven to 375-degrees.
Place graham crackers in a gallon-sized Ziploc bag. Remove air and seal tightly. Using a rolling pin, smash the crackers and roll out until you have very fine crumbs.
In a medium-sized bowl, combine crumbs, sugar, and butter until all the crumbs are evenly moist.
Press crumbs into a jelly roll pan.
Bake for 7 minutes in preheated oven.
Allow the crust to completely cool.
Use a spoon to break up the crusts and place crumbles into jars or bowls for serving.