Professional chefs have identified the five most common errors that prevent home cooks from achieving a perfect steak sear. The number one mistake is placing meat in a pan that isn't hot enough, resulting in steaming rather than searing. A properly heated cast iron skillet should produce an immediate, aggressive sizzle on contact.
Other frequent errors include overcrowding the pan, failing to pat the steak dry before cooking, flipping too frequently, and neglecting to rest the meat after cooking. Each of these mistakes compromises the coveted Maillard reaction that produces a flavorful, caramelized crust.
Chefs recommend letting steaks come to room temperature for 30 minutes before cooking and seasoning generously with salt at least 45 minutes in advance to draw out surface moisture for a superior sear.