For the freezer: additional ingredients needed when heating
Swapping the vegetable oil spread for rendered salt pork fat fundamentally alters the soup by introducing a savory depth that commercial butter substitutes cannot replicate on their own. New England chowders traditionally relied on salt pork or bacon drippings to build a heavy base before adding dairy, though modern iterations often explore lighter profiles.
Adjusting this yield requires careful scaling of the starchy components because potatoes absorb liquid at a fixed rate regardless of pot size. Maintaining exact ratios of powdered milk to liquid prevents the broth from breaking into a watery consistency upon final reheating.