You can make this the traditional way or in the Instant pot. The instant pot cuts down on cleanup, as you only have one pot to clean. But you can also make using a large skillet or dutch oven, a standard crock pot, or pressure cooker. TIP: save your cheese rinds if you buy a hunk of parmesan or romano cheese. It adds such a richness of flavor when cooked in with the sauce. Remove after cooking and discard.