In a large bowl, whisk together the heavy cream, whole milk, granulated sugar, and vanilla extract until the sugar is dissolved.

Pour the ice cream mixture into a zip-top bag and seal it tightly, ensuring no air is trapped inside.

In another larger zip-top bag, add the ice and salt.

Place the sealed bag with the ice cream mixture inside the larger bag with ice and seal it tightly.

Shake the bags vigorously for about 5-10 minutes until the ice cream mixture thickens and hardens.

Remove the inner bag, wipe off any salt, and scoop the ice cream into bowls or cones.