Tandoori Spiced Grilled Chicken
Ingredients 2 teaspoons cumin seeds 2 teaspoons coriander seeds 1 teaspoon fennel seeds 1 onion, chopped 2 cloves garlic 2 tablespoons grated fresh ginger (from a 2-inch piece) 3 tablespoons vegetable oil, plus more for grill 1/2 teaspoon ground turmeric 1/2 cup plain yogurt (not Greek) Kosher salt 1 whole chicken (about 3 1/2 pounds), split in half down the spine, backbone removed Mango chutney and coriander chutney, for serving (see cook’s note)...