Step 1

To a sealable plastic bag, add the heavy cream, whole milk, and vanilla extract.

Step 2

Add in the sugar. Now seal the bag (double-check to make sure it is completely closed) and shake for a moment until the sugar is evenly distributed and has dissolved completely.

Step 3

Open the bag, remove as much excess air as possible, and seal again.

Step 4

To a separate larger resealable plastic bag, add the ice and salt.

Step 5

Place the bag with the cream mixture inside the ice bag, making sure both bags are sealed tightly.

Step 6

Shake the bag vigorously over a sink for about 5 minutes. (You may want to wear gloves or wrap the bag with towels so your hands won't get cold.) The salt will lower the temperature, causing the mixture to freeze and turn into a soft-serve ice cream.

Step 7

Carefully remove the ice cream bag from the ice bag.

Step 8

Check the consistency of the soft serve. If it has reached the desired thickness, it is ready to serve. Shake a little longer for a harder ice cream.

Step 9

Scoop or pipe the soft serve into bowls or cones and enjoy immediately.