This might be the trickiest part of making grilled eggplant rollatini, but once you get the hang of it, it's easy. Choosing the right eggplant definitely helps—you should look for firm, medium-sized eggplants with smooth skin.
Once you get it home, you’ll want to choose the best tool for the job. A sharp chef's knife works well, but if you own a mandoline slicer that can do thick cuts, that’s even better. Aim for slices about ¼-inch thick. Don't worry if you don’t get it right the first time! Every good chef needs a few practice slices. Even if they’re not perfect, they’ll roll just fine—and more importantly, they’ll still taste good.
By the way, you'll often hear eggplant called aubergine outside of North America, so recipes for aubergine rollatini are working on the same principles as this. You may also come across spellings like "eggplant rollatine" or other names like "eggplant roulade," but regardless of the name, the goal stays the same: tender slices wrapped around a flavorful filling.