He reveals the secret in the video. A carbon steel pan. That's it. The pan takes an incredible amount of heat. Up to 700F. The skin sizzles and in seconds is perfectly seared. A quick flip to char the flesh and then into a 350F oven to cook the filet on the inside.
A cast iron pan also works well at high heat, but from my experience the carbon steel pan does a better job. Both pans are relatively inexpensive. A carbon steel pan will cost half the price of a comparably sized, quality stainless steel pan. When you shop for a carbon steel pan, buy one that is made with a thicker gauge steel. I have been using de Buyer pans. Chef Boudreaux recommends Matfer Bourgeat. The advantage of the thicker gauge pans is they retain heat longer than the pans made with a thinner steel.
Cast iron pans are easy to find. Carbon steel pans, not as much. In the Los Angeles area, the only source for the pans is Surfas Culinary District. In New York, I have seen them upstairs at Zabar's.
Recently, I have seen a great many De Buyer pans on Amazon. I recommend looking there. Given the variety of De Buyer pans, I recommend the frying pans, not the pans with higher, rounded sides and frying pans with smooth bottoms. The ribbed bottoms are excellent to create grill marks, but the ribs inhibit good sautéing.
Using the pan exclusively, I discovered the beautiful work it does on steaks. Treated very much in the same way as the fish filets, each side of the dry seasoned steak is charred and then placed into a 350F oven to cook the interior of the steak. While the steak is resting for five minutes under aluminum foil, quickly sear your favorite vegetables in the pan to pick up the pan dripping flavor and serve as a side dish.
After that, I moved on to tofu, shrimp, octopus and chicken breasts. And then onto vegetables. Broccoli, shiitake mushrooms, Japanese eggplant, carrots, asparagus, green beans, English peas and corn kernels. Every firm fleshed vegetable I tried worked perfectly when I applied high heat using the carbon steel pan.
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