She was the first GM of the first Shake Shack. That’s serious credentials.
Highlights
ground chuck: 20% fat
1lb, divided into 4 pieces.
shaggier/craggier/cracked is better (gives crunch and releases juices)
potato bun (recommended Martin’s potato bun). Hawaiian roll ok. toast the bun.
season meat after forming balls, before smashing.
special sauce: ketchup, mayonaise, mustard, grated onion or pickle jiuce.
smash on the griddle, just one side.
don’t mess with the burger, just watch the edge. look for juices to start to appear on top (fat rendering pushing it up). turn the spatula over.