
Few meals feel as genuinely special as a perfectly seared filet mignon, and this version delivers that steakhouse experience entirely from your own kitchen. The technique here is classic and reliable — a screaming-hot cast iron skillet builds a deep, caramelized crust before the oven finishes the job gently, giving you edge-to-edge doneness without overcooking. What really elevates the whole thing is the herb butter made with ghee, fresh parsley, thyme, rosemary, garlic, and a hint of lemon zest — it melts luxuriously over the hot steak the moment it hits the plate. Ghee keeps this recipe firmly in paleo territory while still delivering that rich, buttery finish you'd expect from a high-end cut. The ingredient list is clean and straightforward — just good meat, fresh herbs, avocado oil, and simple seasonings — so there's nothing hidden to worry about. Resting the steaks after the oven is a small but crucial step that lets the juices redistribute and the butter melt into every bite. This is the kind of recipe that looks impressive enough for a dinner party but is honestly simple enough to pull off on a weeknight when you want something truly satisfying.
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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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