In a large mixing bowl, add the cream cheese, salted butter, powdered sugar, vanilla extract, and cinnamon powder. Mix until smooth and well combined.
Crush the graham crackers into fine crumbs using a food processor. Reserve 3 tablespoons (40 g) of graham cracker crumbs, then add the remaining graham cracker crumbs to the cream cheese mixture.
Fold the graham cracker crumbs into the cream cheese mixture until evenly combined. Place the mixture in the freezer for 2 hours to harden.
Remove from the freezer and roll small portions of the mixture into balls using your hands. Place the rolled cheesecake balls on a parchment-lined baking sheet and freeze for another 2 hours.
Roll half of the cheesecake balls in the reserved graham cracker crumbs and coat the remaining ones in the rainbow sprinkles. Once each ball is fully covered, set them back on the parchment-lined baking sheet. Freeze for at least 1 additional hour, or until they’re firm enough to serve.
Notes
Mix Until Super Smooth: I like to beat the cream cheese mixture until it’s completely creamy and lump-free; it makes the balls extra soft and velvety.Crush Graham Crackers Finely: I pulse them in the food processor until they’rereally fine. It helps them blend in perfectly with the creamy filling. You can also experiment use other types of cookies instead of graham crackers.Chill the Mixture Firm: I always let the mixture freeze fully before rolling; it makes shaping the balls so much easier.Coat Right After Rolling: I roll the cheesecake balls in the toppings while they’re still a little firm but not rock solid; this helps everything stick better.