
Few meals feel as indulgent as a perfectly seared filet mignon, and this version delivers that steakhouse experience right in your own kitchen. The technique here is classic and precise — a screaming-hot cast iron sear followed by a quick oven finish — which gives you that deep, mahogany crust with a rosy, tender center every single time. What really elevates the whole thing is the herb butter made from softened ghee blended with fresh parsley, thyme, rosemary, garlic, and a hint of lemon zest, which melts luxuriously over the hot steak the moment it hits the plate. Using ghee instead of conventional butter keeps this firmly in paleo territory without sacrificing any of the richness you'd expect from a classic compound butter. Avocado oil handles the high-heat sear beautifully, and every other ingredient on the list is clean and whole-food, so there's nothing to second-guess. The resting step is non-negotiable — those five minutes let the juices redistribute and the butter melt into every crevice, turning a great steak into a genuinely memorable one. Whether you're cooking for a special occasion or just treating yourself on a weeknight, this is the kind of recipe that makes the effort feel completely worth it.
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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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