In this video, you’ll see how to make grilled hearts of romaine lettuce. This is truly and ridiculously easy. The trick is to get the grill grates very hot. And the result? A lightly caramelized surface and a slightly smoky flavor. And meanwhile, the insides stay cool and crisp. It's quite a contrast of tastes and textures. Top them with grated cheese and a simple vinegar and olive oil dressing. Watch the video, then get the recipe for Chef John’s Grilled Hearts of Romaine. You can make these outside on the grill or inside using grill pans.