In a saucepan, combine heavy cream, whole milk, dulce de leche, and salt. Heat over medium, stirring often, until the dulce de leche is fully melted and the mixture is smooth (do not boil).
3 cups heavy cream, 1 cup whole milk, 1 13.4 oz can dulce de leche, ¼ teaspoon salt
Remove from heat and pour into a large bowl. Cover with plastic wrap and chill for six hours or preferably overnight.
Once chilled, churn the mixture in your ice cream maker according to the manufacturer’s instructions. This usually will take 20-25 minutes or churning.
Spread half of the churned ice cream into a loaf pan or ice cream container. Swirl in a few spoonfuls of extra dulce de leche. Add the remaining ice cream and swirl in more dulce de leche on top. Cover and freeze for at least 4 hours, or until firm.
Extra dulce de leche for swirling
Scoop and enjoy in a serving cup or in a cone!