Here is a recipe for an oven-roasted version of the flavorful street-side classic usually cooked on a rotisserie. It is perfect for an evening with family and friends. Serve with pita and tahini, chopped cucumbers and tomatoes, some olives, chopped parsley, some feta, fried eggplant, hummus swirled with harissa, rice or rice pilaf. You can make the white sauce that traditionally accompanies it by cutting plain yogurt with mayonnaise and lemon juice, and flecking it with garlic. For a red to offset it, simmer ketchup with crushed red pepper and a hit of red-wine vinegar until it goes syrupy and thick, or just use your favorite hot sauce instead.