Make Ahead Tip: Hold at room temperature for up to 2 hours or refrigerate for up to 3 days.
Chipotle peppers are dried, smoked jalapeño peppers. Look for ground chipotle chile powder with other specialty spices in large supermarkets.
Oiling a grill rack before you grill foods helps ensure that the food won't stick. Oil a folded paper towel, hold it with tongs and rub it over the rack. (Do not use cooking spray on a hot grill.)
1 1/2 vegetable