Super sour lemon burger, show-accurate version

Toast the brioche buns on the stove a few minutes until nicely toasted.

Form the ground beef into a large patty and cook until a hard sear has formed on one side, seasoning with salt and pepper; sear the other side.

Mix a heavy glug of mayo with a splash of mustard for the yellow sauce.

Thinly slice an entire lemon, rind included.

Assemble: bottom bun, patty, as many lemon slices as will fit, lettuce, then the mustard mayo spread on the top bun; squish and cut down the middle.