Lemon Marinated Sirloin Steak

A 2-inch thick sirloin needs a marinade that can actually penetrate, and this one delivers. Lemon juice and zest team up with Worcestershire sauce and mustard to break down the surface fibers while building layers of tangy, savory flavor.

The acid from all that lemon juice does real work here. Four hours minimum (overnight is better) gives the citrus time to tenderize the outer layer of the steak without turning it mushy. The touch of sugar in the marinade balances the acid and helps the outside caramelize on the grill.

Score the fat edges before marinating. This prevents the steak from curling on the grill and lets the marinade seep into the fat cap where the flavor concentrates. Turn the steak several times during marinating so both sides get equal treatment.

Pat the steak dry before it hits the grate. Wet meat steams instead of searing, and you want that charred crust that only comes from dry heat meeting dry surface.

Pro Tips

• Bring the steak to room temperature for 15 minutes before grilling. A cold center means the outside overcooks before the middle reaches medium-rare.
• For a 2-inch thick steak, medium-hot coals and patience are key. Resist the urge to move or press the meat.
• Heat the reserved marinade to a rolling boil on the grill before spooning it over the carved slices. This step is essential for food safety since the marinade touched raw meat.
• Carve against the grain in thin slices. Sirloin has a pronounced grain, and cutting with it makes the meat stringy.

Variations

• Swap lemon for lime juice and add a minced jalapeño for a Southwestern spin.
• Use Dijon mustard instead of prepared yellow mustard for a sharper, more complex bite.
• Add fresh rosemary or thyme sprigs to the marinade for an herby, Provençal flavor.