For medium-rare doneness, cook skirt steak until it reaches 130 degrees Fahrenheit for ideal tenderness. This internal temperature can usually be achieved by pan-searing the meat between two and four minutes per side, depending on its thickness. When the carnivore in you gets a craving for beef, add some skirt steak to your Instacart app. Whether you like it bold and spicy or sweet and savory, a shopper can have it to you today!