Place half of the chocolate milk, half of the nesquik powder, half of the sweetened
condensed milk, half of the whipped topping, and half of the vanilla in a blender.
Blend until well mixed and combined.
Pour into a 9x13 baking dish. Place into the freezer.
Repeat with the remaining ingredients.
Every 30 minutes, scrape and mix the frosty breaking up the ice crystals. Focus on the
outer edges, they freeze first. Keep doing this until it is frozen to your liking.