Clockwise from large bowl at top (all recipes can be found in this section): Java Rub, Mucho Macho Pepper Rub, Chinese Five-Spice Rub, Basic Fish Cure, Mediterranean Herb Rub, and Basic Barbecue Rub. Cajun Rub, small bowl in center; Sesame Seasoning, large bowl in center.
Rubs are the basic seasonings of barbecue—simple mixes of salt, sugar, and spices or herbs that add complex layers of flavor to your food. There are two basic ways to use a rub. You can sprinkle it on food just before grilling, in which case the rub acts as a seasoning. Or you can apply it several hours or even a day in advance, in which case the rub both seasons and cures the meat. The second way gives you the deep layers of flavor that are characteristic of true barbecue. By the way, the proper way to apply a rub is to sprinkle it over the food, then gently rub it on with your fingertips.