Chef John’s Ultimate Steak Sandwich

Description In this non-traditional steak sandwich, the steak is cut into thick strips, so we’re able to get a nice sear on the outside without having to worry about the inside overcooking. Ingredients 1 (2 pound) fully-trimmed flat iron steak salt and pepper 8 ounces brown clamshell mushrooms, grilled, separated salt and pepper to taste … Read more