Australian Wagyu Outside Skirt Steak

Most people know skirt steak from fajitas. That's not an accident — the cut's open, coarse grain is basically designed to capture marinade, sauce, and fat. But here's what changes when you apply that structure to Wagyu genetics: you don't need a marinade anymore. The outside skirt from an Australian Wagyu animal is already pre-loaded with intramuscular fat threading through every fiber. What you get is the marinade effect built into the meat itself.

We specifically carry the outside skirt rather than the inside skirt — and that distinction matters. The outside skirt is thicker, more uniformly shaped, and has a higher fat content. It's the one butchers take home. The inside skirt is wider and thinner and better suited to bulk cooking. The outside skirt is better suited to moments when you actually want to taste what you're eating.

The Australian Wagyu program that produces this cut uses Fullblood and high-percentage Wagyu genetics raised on pasture and finished on grain — a longer feeding program than American Wagyu, which contributes to the marbling consistency we see across these cuts. The Halal certification makes this one of the more genuinely scarce products we carry; certified Halal Wagyu at this quality level requires an entirely separate supply chain, from certified slaughter to verified handling. It's not easy to source, which is exactly why we carry it.

The Most Important Rule: High Heat, Fast, and Rest It

The outside skirt is a thin, fatty cut with a loose grain. It is not a low-and-slow cut — it wants the highest heat you can generate and a fast cook. The goal is a hard sear on the outside while keeping the center at medium-rare to medium. Anything past medium and you've lost what makes this cut worth buying.

Best Methods

Cast Iron or Carbon Steel Pan: Get the pan screaming hot — 5 full minutes on high with no oil. Pat the steak completely dry. Add a neutral high-smoke-point oil right before the meat goes in. Sear 2–3 minutes per side without moving it. Because the Wagyu fat renders aggressively, you may see flare-ups on gas; that's expected.

Charcoal Grill (preferred): Bank the coals for maximum direct heat. Grill directly over the coals for 2–3 minutes per side. The fat dripping onto hot coals creates smoke that becomes part of the flavor — this is a feature, not a flaw.

Gas Grill: Preheat all burners on high for at least 10 minutes. Cook the same as charcoal but expect slightly less char development.

Temperature Targets

Medium-Rare (recommended): Pull at 125–128°F internal. It will carry over to 130–132°F during rest.

Medium: Pull at 135°F. Beyond this the muscle fibers tighten and you lose the tenderness the marbling was providing.

Do not cook past medium. This is not a forgiving cut at well-done.

Resting and Slicing

Rest the steak on a wire rack (not a flat board — you don't want it sitting in its own juices and steaming) for 5–7 minutes. Then, and this is non-negotiable: slice against the grain, at a 45-degree angle. The grain on an outside skirt runs clearly across the width of the steak. Cutting with the grain will make even this Wagyu feel tough. Cutting against it produces silky, clean slices that fall apart at the table.

Seasoning Note

Because of the fat content and inherent beefy depth, kosher salt and cracked black pepper applied 30 minutes before cooking is genuinely all this needs. If you want to use a marinade, an acid-forward one (citrus or vinegar-based) for no more than 2 hours adds brightness without breaking down the texture. Overnight marinades will over-tenderize a cut that's already tender.