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

Pour the mixture into a freezer-safe container and freeze for at least 4 hours or until solid.

Remove the frozen ice cream base from the freezer and let it sit at room temperature for about 10 minutes to soften slightly.

Place the softened ice cream base into the Ninja Creami pint container and process using the 'Ice Cream' function until creamy.

If the ice cream is too crumbly, reprocess using the 'Re-Spin' function until the desired consistency is achieved.