Try this one. Mix two raw eggs with 3-4 pounds of fresh ground beef Add pepper and salt and tighten the mix with Progresso Italian bread crumbs. Make and cook patties as per usual.
That’s what I was going to write.
The scrambled eggs inside the burger cook, holding the juices in, you can’t even smash them out. Whatever spices you add to the scrambled eggs will also be cooked in.
The first thing is to bribe your local butcher enough to pass a 10lb brisket through his meat grinder a couple times to make your ground beef. Trust me.