Fill a large bowl with ice water and set it aside.
In a small saucepan, whisk together the egg yolks, corn
syrup, and sugar until the mixture is fully combined and the sugar is
dissolved. Do not do this over heat.
Whisk in the milk, heavy cream, and vanilla.
Place the pan over medium heat. Cook, stirring constantly
with a rubber spatula, until the temperature reaches 165°F to 175°F on an
instant-read thermometer. Remove the pan from the heat and stir in 3 cups of
cereal. Let steep for 20 minutes.
Remove the pan from the heat and pour the base through a
fine-mesh strainer into a clean CREAMi Pint. Carefully place the container in
the prepared ice water bath, making sure the water doesn't spill into the base.
Once the base has cooled, place the storage lid on the pint
and freeze for 24 hours.
Remove the pint from the freezer and take off the lid. Place
the pint in the outer bowl of your Ninja CREAMi, install the Creamerizer Paddle
in the outer bowl lid, and lock the lid assembly onto the outer bowl. Place the
bowl assembly on the motor base, and twist the handle to the right to raise the
platform and lock it in place. Select the Ice Cream function.
Once the machine has finished processing, remove the lid
from the pint container. With a spoon, create a 11/2-inch-wide hole that
reaches the bottom of the pint. During this process, it is okay if your treat
reaches above the Max Fill line. Add the remaining '/4 cup of cereal to the
hole in the pint, replace the lid, and select the Mix-In function.
Once processing is complete, remove the ice cream from the
pint. Serve immediately.
