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Instructions:
- Remove the porterhouse from the refrigerator 45 to 60 minutes before cooking to allow it to come to room temperature.
- Pat the steak completely dry with paper towels. Season both sides generously with kosher salt and freshly ground black pepper.
- Preheat the oven to 450°F (232°C).
- Heat a large cast-iron skillet over high heat until very hot. Add olive oil.
- Place the steak in the skillet and sear for 4 to 5 minutes per side, until a deep brown crust forms.
- Add butter, smashed garlic, and thyme to the pan. Tilt the skillet and continuously baste the steak with melted butter for 1 to 2 minutes.
- Transfer the skillet to the oven and cook for 5 to 8 more minutes, depending on desired doneness:
- 125°F for medium-rare
- 135°F for medium
- Remove from the oven and top with an additional pat of butter. Let the steak rest for 10 minutes before slicing.
- Slice along the bone to separate the strip and filet sides, then cut into thick slices. Garnish with parsley and serve immediately.
Variations :
- Finish with a sprinkle of flaky sea salt just before serving.
- Add rosemary to the butter for a more herb-forward flavor.
- Top with blue cheese butter for a bold steakhouse twist.
Tips :
- Use a meat thermometer for precise doneness.
- Always let the steak rest to allow juices to redistribute.
- For the full steakhouse effect, heat a serving platter in the oven and spoon melted butter over the sliced steak just before serving to create a sizzling presentation.