BEEF CARPACCIO

Steps:

• Trim the beef tenderloin of all fat, sinew and silver skin. Tightly wrap the beef in plastic wrap, and place in freezer until firm, about 2 hours.
• Remove the beef from the freezer, and slice it crosswise into 1/8-inch-thick rounds. Divide the sliced beef into 4 equal portions among 4 sheets of parchment. Arrange the slices for each portion into a round, like a four-leaf clover or a pansy, with each petal slightly overlapping the next. Place a clean sheet of parchment on top of each neatly arranged round, and with the heel of your hand or a rolling pin, gently press the meat into cracker-thin, uniform circles without tearing the meat, working quickly to keep the meat from warming. Transfer the parchment-covered portions and 4 plates to the refrigerator to chill.
• Set up a stovetop fryer by heating the neutral oil in a Dutch oven over medium heat. Attach a candy thermometer to the side of the fryer, and heat the oil until the gauge reads 325 degrees, about 7 minutes. Thoroughly and carefully drain, then pat-dry, the matchstick potatoes. Just before cooking the potatoes, increase the temperature to high in anticipation of the plummeting in temperature. Add the potatoes to the oil and cook, agitating with a spider or slotted spoon to ensure even cooking, until the potatoes are light and golden in color, 2 or 3 minutes. Using a slotted spoon, transfer the potatoes to a paper-towel-lined plate. Season with kosher salt and a few drops of truffle oil.
• Dress the arugula with lemon juice, a drizzle of olive oil, kosher salt and plenty of freshly cracked black pepper.
• To assemble, remove the top layer of parchment from a beef portion, turn the beef onto a chilled plate and carefully peel off the remaining parchment. Repeat with the remaining beef portions. Season the beef with salt and freshly ground black pepper. Pile the dressed arugula, Parmesan, then the warm matchstick potatoes on the beef in 4 even portions. Season with salt, pepper and several drops of truffle oil.