In a small bowl, whisk together 1/3 cup soy sauce, 1/3 cup lemon juice, 1/2 cup extra virgin olive oil, 1/4 cup Worcestershire sauce, 1 tablespoon minced garlic, 2 tablespoons Italian seasoning, 1 teaspoon pepper, 1/2 teaspoon salt, and a pinch of red pepper. Add 1 1/2 pound rib eye steaks to a resealable zip lock bag or large bowl and pour the marinade on top. Marinate for 2 hours or overnight.: The marinade smells bright and savory, with citrus and garlic lifting the salty depth of soy sauce and Worcestershire sauce . You will notice tiny oil droplets suspended in the liquid, and the aroma should be inviting, not harsh. Whisking helps emulsify the oil and acid so each portion of the rib eye steaks makes contact with every flavor. If the mixture smells overly acidic, add a touch more olive oil to round it out. A common mistake is under whisking, which can leave the garlic clumped and lead to uneven flavor distribution.
Heat your grill to high heat. Remove the steaks from the marinade and place on the grill. Grill the steaks until they slightly char and are golden brown from 3-5 minutes. Flip the steak and cook on the other side until desired doneness.: As you place the rib eye steaks into the container, press the marinade into the surface so it coats evenly; you should hear faint sloshing as the liquid moves around the meat. The meat should sit submerged or be turned occasionally so the flavor permeates all sides. Using a resealable bag helps the marinade cling and reduces air exposure. Avoid overfilling the bag which can prevent even coverage, and do not pack steaks too tightly because tight stacking can inhibit penetration of the marinade.
Remove from grill and tent with foil. Let the steaks rest for 5 minutes. Top with 2 tablespoons butter and fresh chopped parsley to serve.: During marinating the scent will shift subtly, the lemon juice will begin to soften the outer fibers, and the color may deepen slightly. If you marinate overnight you will gain extra flavor depth, but keep in mind that very long acid contact can tenderize too much and change texture. A typical mistake is leaving highly acidic marinades on for more than 24 hours, which can make the surface mushy; two hours is a reliable minimum that still provides a noticeable improvement.
Heat your grill to high heat: Preheating should produce an even, intense heat and a faint smoky aroma as the grates get hot. You will see heat shimmer above the grill and feel the warmth if you hold your hand several inches above the surface. High heat is crucial for forming a good crust quickly, which seals juices inside. If your grill does not get sufficiently hot you may end up with an overcooked interior and a pale exterior, so clean grates first and allow ample preheat time.
Remove the steaks from the marinade and place on the grill: When you set the steaks on the grates you should hear an immediate, assertive sizzle, and the meat should begin to give off a faint roast aroma. Pat the excess marinade off so it does not cause large flare ups, which can char the outside too quickly. Place the steaks with gentle pressure so the entire surface contacts the grates. Avoid moving them too soon, as premature flipping can tear the developing crust.
Grill the steaks until they slightly char and are golden brown from 3 to 5 minutes: As the steak cooks you will hear sizzling intensify and notice juices rising to the surface, signaling the Maillard reaction is happening. The edges will darken and small droplets will bead on top. Use a reliable timer and visual cues rather than guessing. A common error is relying solely on time without checking color and feel, which can lead to under or overcooking.
Flip the steak and cook on the other side until desired doneness: After the flip you will again hear a distinct sizzle and see similar beading of juices. Press gently to assess springiness, which helps gauge doneness; a soft center indicates rare, while firmer gives medium to well. Cook to one level below your final target because carryover will raise temperature slightly while resting. Flipping multiple times prevents a consistent crust, so avoid excessive turning.
Remove from grill and tent with foil: Once off heat, the air around the steak will be warm and the aroma mellow. Tenting with foil traps heat and allows internal juices to redistribute, preventing them from pooling at the surface. You should not wrap tightly, as a loose tent keeps the exterior from steaming. A frequent mistake is slicing immediately, which causes a lot of juice to run out, making the steak drier on the plate.
Let the steaks rest for 5 minutes: During resting you will notice the sizzling quiet and the aroma settle; juices move inward and the texture becomes more cohesive. Five minutes is enough for average cuts; thicker cuts may need longer. Resist the urge to cut early, because you will lose flavor and moisture. Resting too long without tenting can cool the steak excessively, so keep it covered but not sealed.
Top with 2 tablespoons butter and fresh chopped parsley to serve: As the warm butter melts it creates a glossy sheen and releases a rich dairy scent that softens and balances the grilled notes, while fresh parsley adds a bright, herbal contrast. Spoon the butter to distribute it so each slice benefits from the melt. If you skip the butter you miss a layer of mouthfeel that makes the steak feel finished, but if you add it while the steak is still cold it will not melt evenly.