How Long to Cook Ground Beef Browning (80/20 Chuck, for Tacos or Chili) in the cast iron
Specification: 1 lb 80/20 ground chuck, broken into rough 2-inch chunks and dropped in a preheated 12-inch skillet — do not stir for the first 3 minutes
3-Step Execution Protocol
Heat cast iron skillet over Medium-high (surface around 400°F when the beef hits the pan) until lightly smoking. Prepare ground beef browning (80/20 chuck, for tacos or chili) (1 lb 80/20 ground chuck, broken into rough 2-inch chunks and dropped in a preheated 12-inch skillet — do not stir for the first 3 minutes).
Cook for 8–12 mins (3 mins undisturbed for a sear crust, then break and stir for 5–9 more mins). Flip at the 3-minute mark for even browning.
The rendered fat runs clear amber (not milky pink); the pan bottom has a dark fond that has not burned; a probe pushed into a crumble anywhere in the pan reads 160°F, and there is no visible pink meat when you spread the crumble flat. Confirm internal temperature reaches 160°F throughout — USDA FSIS ground beef safe minimum, no pink remaining in the crumble. Rest for 0 minutes before serving.
USDA FSIS 160°F ground beef minimum internal temperature (no rest allowance — ground meat must reach the temperature during the cook, not after). Undisturbed-then-break browning method per Serious Eats "The Food Lab" ground-beef technique (J. Kenji López-Alt) and America's Test Kitchen taco meat reference — both attribute the deeper flavor of properly browned ground beef to Maillard fond that only forms above 300°F pan-surface contact.