What cut of steak is best for steak tacos?
Skirt steak is classic for tacos because it's beefy and cooks fast. Flank steak is slightly leaner but still great if you slice it thin against the grain. For extra tenderness, sirloin works well too.
How do I keep steak tacos tender?
Do three things: (1) don't overcook, (2) let the steak rest 5 to 10 minutes, and (3) slice against the grain. That last step is the difference between tender strips and chewy ones.
Any tips for slicing skirt steak?
Skirt steak has a very obvious grain. If it's long and awkward, cut it into 2 or 3 shorter sections first, then slice each section thinly against the grain.
Can I cook the steak without a cast iron skillet?
Yes. Any heavy skillet works. You can also broil it on a sheet pan, about 4 to 6 inches from the heat, flipping once.
Corn or flour tortillas?
Corn tortillas bring that classic taco vibe and hold up well with juicy toppings. Flour tortillas are softer and kid-friendly. Warm whichever you choose so they don't crack.
What if I don't have time to marinate?
Even 10 minutes helps. Think of it as a quick flavor coat, not a long tenderizing marinade. If you're really rushing, season the steak well, sear it, then squeeze lime over the slices and finish with a pinch of salt.