Inside skirt steak is a long, thin, and flavorful cut of beef taken from the plate section of the cow, specifically from the diaphragm muscle. Known for its rich, beefy flavor and pronounced grain, it’s slightly thicker and less marbled than the outside skirt, but just as delicious when cooked and sliced properly.
Inside skirt steak is a favorite for dishes that benefit from a bold, meaty bite, like fajitas, carne asada, and stir-fries. It’s best cooked quickly over high heat and sliced thin against the grain for maximum tenderness.