Aioli is a garlic mayonnaise, popular in southern France, and tasty as a spread on sandwiches. This sandwich is hearty, filling, and packed with flavor! You can use minced garlic from the jar where it calls for the garlic in the aioli, but you can definitely tell the difference. I don't have a press, so I just mince the garlic with a knife. This recipe is from "The Barbecue! Bible" by Steven Raichlen. It is based on using an outdoor grill, but this is a direct-heat method, so you could also use a grill pan (what I do), and it works great too.