In a large mixing bowl, whip the heavy cream until stiff peaks form (think fluffy clouds).

In a separate bowl, stir together the sweetened condensed milk, vanilla, and salt.

Gently fold the whipped cream into the vanilla mixture using a spatula. Don’t overmix—you want to keep the airiness.

Pour the mixture into a loaf pan or freezer-safe container. Smooth the top.

Cover with plastic wrap and freeze for at least 6 hours or overnight until firm.