
Few dinners feel as indulgent as a perfectly seared filet mignon, and this version delivers that steakhouse experience entirely from your own kitchen. The technique here is classic and precise — a screaming-hot cast iron sear followed by a quick oven roast — which builds a deep, caramelized crust while keeping the center tender and rosy. What really elevates the whole thing is the herb butter made with ghee, fresh parsley, thyme, rosemary, garlic, and a hint of lemon zest, which melts luxuriously over the hot steak the moment it hits the plate. Ghee stands in beautifully for conventional butter, keeping this entirely paleo-friendly without sacrificing any of that rich, savory finish you'd expect from a high-end cut. Since every ingredient here is whole and straightforward, there's no need to scan labels or worry about hidden nut-based oils or additives sneaking into your meal. The resting step is non-negotiable — those five minutes let the juices redistribute and the temperature climb to that perfect medium-rare sweet spot. Whether you're cooking for a special occasion or just treating yourself on a Tuesday, this is the kind of recipe that makes you feel like a genuinely skilled cook.
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Preheat the oven to 425°F (220°C). Remove the steaks from the refrigerator 20–30 minutes before cooking and pat them completely dry with paper towels. Season all sides evenly with the kosher salt and black pepper.
In a small bowl, combine the softened ghee, parsley, thyme, rosemary, garlic, flaky sea salt, and lemon zest, if using. Stir until evenly mixed, then set aside at room temperature.
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