Step 1

In the bowl of an electric mixer, whip the cream until stiff peaks form. On low speed, mix in the condensed milk, vanilla, and any flavorings.

Step 2

Pour into a resealable container, cover the surface with plastic wrap, then seal. Freeze for at least 6 hours, or until firm. Keep stored in the freezer.

Step 3

In a large bowl, use an electric mixer to beat the milk and sugar until the sugar is dissolved, 1 to 2 minutes. Stir in the cream, vanilla, and salt until combined. If mixture isn’t cold, place in the refrigerator until chilled, about 30 minutes.

Step 4

Place the mixture in a deep stainless steel baking dish and freeze for 45 minutes. As it begins to freeze near the edges, remove it from the freezer and stir vigorously with a spatula. Return to the freezer.

Step 5

Continue to check the mixture every 30 minutes, stirring vigorously as it’s freezing. If you have a hand held mixer or blender, use one of those. Repeat this process for 2 to 3 hours, or until frozen.

Step 6

Place the ice cream mixture in a quart size resealable bag, squeezing out as much air as possible and sealing tightly. Place this bag inside another quart bag, again squeezing out as much air as possible and sealing tightly. Put the bags inside a gallon size resalable bag and fill with about 4 cups crushed ice then sprinkle with 4 tablespoons coarse salt. The salt lowers the freezing point of the ice and creates an extra cold environment that aborbs heat, causing the ice cream base to freeze.

Step 7

Squeeze out all the air and seal tightly. Wrap the bag in a towel or put gloves on before shaking vigorously and massaging the bag, making sure the ice is surrounding the ice cream mixture constantly. Shake for about 5 to 8 minutes, or until the ice cream is frozen. The more vigorously you shake, the smoother your ice cream will be.