Flat Iron Steak, also known as a top blade steak or butler's steak, is a cut of beef that comes from the shoulder area, specifically the chuck. It is known for being flavorful, tender, and relatively inexpensive compared to other premium steaks like ribeye or filet mignon. Flat Iron Steak is well-marbled, which gives it a rich, beefy taste, and it’s often grilled, pan-seared, or broiled. It's become popular for its combination of tenderness and cost-effectiveness, making it a favorite for both restaurants and home cooks.