This is an old time pantry recipe that harks back to the days when people had ice boxes; and most of their stored food did not require refrigeration. I like to collect recipes like this (along with the provisions) as storm provisions; actually in Los Angeles it called earthquake provisions. Just to be ready for when the big one hits, it's a good idea to keep canned potatoes and dried onions on hand. Meanwhile, it's a very tasty, quick and easy recipe to make when you're just in a hurry. And good for camping trips. I found this recipe in a facsimile of a 1920's cookbook published by Piggly Wiggley Market, I bought it at Columbia, an historic site in gold rush country in California.