After years of debating whether marinades are worth the effort, we’ve decided to mostly skip them, especially when it comes to steak on a weeknight.
That’s because the ingredients in marinades do a poor job of penetrating the surface of the meat, and liquids actually inhibit the flavor that comes from searing meat because it has to first boil off.
So for steak, our motto is, season first, sauce later.
That’s how we treat the steak in a simple taco filling in our book “COOKish,” which limits recipes to just six ingredients without sacrificing flavor. Rubbing ground cumin into skirt steak helps develop a good crust when it’s seared in a skillet. Then while the steak rests, we turn sautéed onion and poblano chilies into a quick salsa. Dousing the mixture with lime juice after cooking keeps the flavors bright and balanced.
Skirt steak is the perfect cut for these tacos because the cumin gets trapped in the folds, and the relatively high fat content adds flavor while insulating the spice from burning.