This easy sheet-pan dinner exudes exotic aromas and makes an exciting colorful presentation. It smells like the butter chicken I get from my favorite Indian restaurant. As it roasts, the sauce sets up on the chicken, giving you a thick, crunchy-on-the-edges, chewy-moist-in-the-middle texture—amazing. Serves 4 1 (3 1/2- to 4-pound) chicken, cut into parts, or 3 pounds bone-in, skin-on chicken parts Coarse sea salt and freshly ground black pepper, to taste 2 cups Turmeric Tahini Sauce (recipe follows), divided 2 (15-ounce) cans chickpeas, rinsed and drained 1 medium red onion, thinly sliced, divided 1 tablespoon ground turmeric 1 teaspoon ground cumin 1 teaspoon ground coriander 2 tablespoons extra-virgin olive oil, divided 1 tablespoon freshly squeezed lemon juice Coarsely chopped leaves from 1/2 bunch cilantro 1/4–1/2 teaspoon hot sauce Rub the chicken pieces with a generous amount of salt and pepper and put in a large zip-top plastic bag with 1 …