ingredients
For the Burger
1 pound (453 grams) 85% lean ground beef/chuck
6 burger buns
1 egg yolk
Get the right meat. Get a butcher to grind chuck beef for you with a 15% fat content. If you use more fat and it will just drip off the meat and cause fire flare-ups; less and the burgers will be dry. If possible, buy the meat the day you’re going to cook it.
Ask the butcher to grind the meat twice, once in the coarse plate of the grinder and then through the fine plate.