The 'reverse sear' roast technique involves cooking meat slowly at a low oven temperature until it's nearly done, then finishing it with a quick sear at very high heat (either in a pan or very hot oven) to create a crispy, flavorful crust.
The 'reverse sear' is a highly effective cooking technique, particularly for thicker cuts of meat like prime rib, large steaks, or pork roasts, that aims to achieve a perfectly even doneness from edge to edge with a delicious crust. Unlike traditional roasting where meat is seared first, this method reverses the order. First, the meat is cooked at a very low oven temperature, typically between 200-275°F (95-135°C), until it reaches several degrees below its desired final internal temperature. This slow, gentle cooking allows the heat to penetrate the meat very evenly, minimizing the 'gray band' of overcooked meat often seen with traditional high-heat roasting and resulting in an exceptionally tender, juicy interior. Once the internal temperature is reached, the meat is removed from the oven and rested briefly. Finally, it's transferred to a very hot environment—either a screaming hot cast iron skillet on the stovetop or a preheated oven at 450-500°F (230-260°C)—for a quick, intense sear. This final high-heat blast creates a beautiful, crispy, and flavorful crust (Maillard reaction) without significantly raising the internal temperature or overcooking the perfectly done interior.
Ensure the meat is completely dry on the surface before the final high-heat sear; patting it dry with paper towels is crucial for achieving a truly crispy crust.