01 - Remove steaks from refrigerator 30 minutes before cooking to reach room temperature. Pat dry thoroughly with paper towels to remove excess moisture for better searing.
02 - Season both sides of each steak generously with kosher salt and freshly ground black pepper, pressing seasoning into the meat to adhere.
03 - Heat large cast-iron skillet over high heat until very hot and smoking slightly. Add oil and swirl to coat pan evenly.
04 - Place steaks in skillet without overcrowding. Sear without moving for 2-3 minutes until deep golden-brown crust forms on first side.
05 - Flip steaks and add butter, smashed garlic, thyme, and rosemary to pan. Tilt skillet and continuously baste steaks with foaming butter and aromatics for 2-3 minutes.
06 - Cook to desired doneness: 125°F for rare, 135°F for medium-rare, 145°F for medium. Transfer to cutting board and rest 5 minutes before serving.