Ingredients
Method
- Choose the cut: marbled ribeye or strip for the dry brine; flank, flat iron or sirloin for the marinade.
- Dry brine: salt all sides, set on a rack over a tray, refrigerate uncovered 24 hours (45 minutes minimum, 48 hours maximum). Or marinate lean cuts 2 to 8 hours in the whisked marinade.
- Temper the steak at room temperature for 45 minutes, then pat completely dry.
- Heat a cast iron skillet until just smoking; add the avocado oil and the steaks.
- Flip every 60 seconds until the pull temperature is reached: 115–120°F rare, 125–130°F medium-rare, 135–140°F medium, 145–150°F medium-well. Render the fat cap with tongs for 30 seconds.
- Pepper both sides, then rest on a warm rack, loosely tented, for 10 minutes.
- Slice ½-inch thick against the grain, fan the slices and finish with flaky sea salt.
Notes
Salt by weight of steak (1 teaspoon Diamond Crystal per pound); Morton kosher is denser, so use less.
Pepper goes on after searing so it blooms instead of burning.
Resting adds 5-10°F of carryover heat — always pull the steak early.
Citrus-based marinades must stay under 2 hours or the surface turns mushy; the soy marinade here is safe for up to 8.
Slicing against the grain is the single biggest tenderness step for flank and strip steaks.
