Prep Time 20 minutes mins
Cook Time 12 minutes mins
Resting Time 5 minutes mins
Total Time 37 minutes mins
For best flavor, let the seasoned steak sit at room temperature for 20 to 30 minutes before grilling to promote even cooking, and ensure your grill is properly preheated to achieve a good sear without sticking. If using frozen corn, pat it dry first to avoid watering down the salsa, and adjust jalapeño to your heat preference. Flank steak varies in thickness, so rely on an instant-read thermometer (130°F for medium-rare, 140°F for medium) rather than time alone. Cutting against the grain is essential for tenderness, and any leftovers make excellent tacos or bowls the next day. If you don’t have a grill, a cast-iron skillet works well—just sear with a touch of oil and finish in a 400°F oven to desired doneness.