Slow-Cooker No-Stir Dulce de Leche in Jars {no cans}

sweetened condensed milk (14-16 ounces)

half of a vanilla bean (split and scraped, seeds and pod reserved)

salt

sized canning jar with a clean (two-piece lid)

slow cooker deep enough to hold lidded pint sized canning jars topped with at least an inch of water.