Ice Cream in a Bag

The ingredients below represent the ingredients to make ice cream for one person.

½ cup whole milk
½ cup half and half
¼ tsp vanilla
¼ cup sugar
1 lb. ice
½ cup coarse salt
½ cup water

In a bowl mix the whole milk, half and half, vanilla and sugar with a fork until ingredients are mixed thoroughly.
Pour mixture into the quart size baggie. (You can skip putting it in the bowl and put the ingredients straight into the quart size baggie if you'd like) Squeeze out excess air, seal and secure the top with tape. Put the quart size baggie inside the gallon size baggie. Add salt, ice and water. Squeeze out air and seal. Secure the top with tape.
GENTLY TOSS AND MASSAGE THE BAGGIE FOR ABOUT 10 MINUTES OR UNTIL THE MILKS AND SUGAR TURN TO A SOLID.
This will happen when the milks turn to their coldest temperature.
Cut a corner of the quart size baggie and squeeze out the ice cream into a bowl.