An hour in the Sous Vide water bath is enough to cook the steak to medium. It won't be as tender as the 24 hour version, but flat iron makes a good, inexpensive steak even without the long cooking ...
No matter how you cook your flank steak, always slice it thinly against the grain afterwards to increase the amount of tender, juicy surface area. Since flank steak and flat iron steak are so easy ...
A punchy and beautifully grilled flat iron steak snuggles up to warm mushrooms ... grill garlic slices until they are caramelised. Make sure to keep an eye on them so they don’t burn.