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Perfect Butter-Basted Filet Mignon Recipe with Roasted Garlic Butter

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A quick and easy recipe for tender filet mignon steaks basted with rich roasted garlic butter and fresh herbs, perfect for special occasions or a delicious weeknight treat.

Ingredients

Scale
  • 2 filet mignon steaks, about 6 ounces (170 grams) each, room temperature
  • 3 tablespoons unsalted butter
  • 1 head garlic, roasted
  • 3–4 sprigs fresh thyme (or rosemary as substitute)
  • Kosher salt, to season generously
  • Freshly ground black pepper, to taste
  • 1 tablespoon olive oil
  • Optional: 1 small shallot, finely chopped
  • Optional: pinch of red pepper flakes

Instructions

  1. Preheat oven to 400°F (200°C). Slice the top off the garlic head, drizzle with olive oil, wrap in foil, and roast for 30-35 minutes until soft and golden. Let cool, then squeeze out cloves and mash into a paste.
  2. Pat the filet mignon dry with paper towels. Season both sides generously with kosher salt and freshly ground black pepper. Let rest at room temperature for 20-30 minutes.
  3. Heat a cast iron skillet over medium-high heat and add olive oil. Wait until oil shimmers but is not smoking.
  4. Place the filets in the pan, leaving space between them. Sear for 2-3 minutes on each side without moving to form a deep brown crust.
  5. Reduce heat to medium. Add butter, roasted garlic paste, and thyme sprigs to the pan. As butter melts and bubbles, tilt the pan and spoon the butter repeatedly over the steaks for 3-4 minutes.
  6. Check internal temperature with a meat thermometer: 125°F (52°C) for rare, 135°F (57°C) for medium-rare. Remember steak will continue cooking off heat.
  7. Transfer filets to a warm plate and let rest for 5-7 minutes, loosely tented with foil.
  8. Serve immediately, spooning reserved roasted garlic butter over the steaks.

Notes

If butter browns too quickly, reduce heat to avoid burning. Keep an eye on garlic bits to prevent bitterness. Roasted garlic paste can be made ahead and stored in the fridge. Use room temperature steaks for even cooking and better crust formation. For dairy-free, substitute butter with coconut oil and use garlic-infused olive oil instead of roasted garlic butter.

Nutrition

Keywords: filet mignon, butter-basted steak, roasted garlic butter, steak recipe, easy steak, special occasion steak

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