Ribs With Orange and Pickled Onion
Ingredients
Method
Toast star anise, coriander seeds, cumin seeds, mustard seeds, and cloves in a dry small skillet over medium heat, tossing occasionally, until very fragrant and just beginning to darken, about 5 minutes. Transfer to a plate; let cool. Finely grind in spice mill or with mortar and pestle; transfer to a bowl. Finely grind chiles de árbol, guajillo chiles, and half of sesame seeds. Add to ground spices along with sumac, cocoa powder, cinnamon, allspice, coffee, and remaining sesame seeds; mix well.
Do Ahead: Mole powder can be made 2 weeks ahead. Store airtight at room temperature.
Season ribs all over with salt (we recommend 1¼ tsp. Diamond Crystal or ¾ tsp. Morton kosher salt per lb.) and sprinkle with ½ cup mole powder, pressing to adhere. Arrange on a rimmed baking sheet and let chill, uncovered, overnight.
Place racks in upper and lower thirds of oven; preheat to 300°. Mix red onion, vinegar, sugar, and a few pinches of salt in a medium bowl; set aside.
Transfer ribs to a deep roasting pan and pour in kombucha. Scatter garlic over and arrange white onion and half of orange pieces around ribs. Cover pan tightly with foil; bake on lower rack until tender but not falling apart, 2½–3 hours.
Remove ribs from oven. Heat broiler. Uncover ribs and broil on upper rack, turning once, until crisp, about 5 minutes.
Transfer ribs to a platter. Skim fat from liquid in pan and discard; drizzle liquid over ribs. Top with drained pickled red onion, cilantro, and remaining orange.