Ingredients:
- 2 large onions, thinly sliced
- 3 tablespoons of clarified butter, divided
- 1-2 garlic cloves
- 1 pound (0.45 kg) of rib-eye steaks or other cuts of choice, about ¾ inch thick
- 3 ½ tablespoons of balsamic vinegar, divided
- 2-3 fresh thyme stalks (or rosemary if you prefer)
- Sea salt and freshly ground black pepper to taste
Directions:
- Remove the steak from the refrigerator about half an hour before cooking to bring it to room temperature.
- In a large skillet, heat 1 tablespoon of clarified butter; add the onions and cook, stirring occasionally, until the onions begin to caramelize, approximately 8–10 minutes.
- Add 1½ tablespoons of balsamic vinegar, season to taste, and continue cooking for 1–2 minutes. Set aside while you cook the steak.
- Pat the steak dry with paper kitchen towels, brush it with some clarified butter, and season to taste.
- Heat a medium cast-iron skillet and add the steak. Sear it for about 1 minute per side. Add the remaining clarified butter, garlic, thyme, and balsamic vinegar. Cook for another minute or so per side, flipping once, until it forms a nice brown crust.
- Once it has reached your desired level of oneness, transfer the steak to a plate and tent it with aluminum foil. Let it rest for about 5–6 minutes, then slice it and serve it topped with the caramelized onions.