Pointcarre Cracker
To light crush the graham crackers, I stuck my sleeve (unopened) into a bigger bag, and then started smashing it with the end of my French rolling pin. Smashing it with a pot would also work. I liked leaving it in the sleeve to minimize graham cracker crumbs flying everywhere.
Pointcarre Cracker
Cool down your berry sauce as much as your patience allows (I threw it in a tupperware and stuck it in the freezer while doing other stuff), then swirl it with the churned cream cheese ice cream and add in the graham cracker pieces.