How to Can Apple Butter in a Water Bath (USDA-Tested Method)
TL;DR: Water bath canning apple butter is safe because cooked apples sit well below the pH 4.6 threshold that stops botulism. Cook peeled, cored apples with sugar and spice for 1 to 3 hours, ladle into hot pint or half-pint jars with 1/4 inch headspace, and process 5 to 20 minutes depending on your altitude…