Here's a great recipe for crackers to use at Christmas. I've made this several ways, instead of just hamburger I've used a combination of ground deer and ground beef or ground moose and beef. You could probably use any combination of meat but I suggest adding a non-lean ground meat such as beef or pork because you don't want it to be too dry. I have cooked this on the second day and it's pretty much the same as the fourth day but you should let it sit for a minimum of 24 hours with at least one good mix during that time.