Mix melted butter with sweetened condensed milk and vanilla extract in a large bowl.
Add graham cracker crumbs, coconut, and chocolate chips. Stir until well combined.
Chill mixture in fridge for about an hour, or in freezer for 15-20 minutes.
Shape small portions (about 1 ¼ inches) into balls and roll in extra graham crumbs.
Put rolled balls back in fridge until firm, about 30 minutes to an hour.
Keep in a sealed container in the fridge for up to a week. Enjoy!.
