Chicken marinated in achiote and sour orange, slow-cooked Yucatán-style until tender. This high protein, healthy chicken dish brings the vibrant, citrusy flavors of pibil to a family dinner.
Prepare the marinade by combining achiote paste, sour orange juice, garlic cloves, cumin, oregano, black pepper, and salt in a bowl. Mix until smooth.
Slice the red onion thinly; set aside half for garnish and add the rest to the marinade.
Place chicken thighs in a large zip-top bag or shallow dish. Pour marinade over, coat thoroughly, and marinate in the refrigerator for at least 2 hours, preferably overnight for deeper flavor.
Line a Dutch oven or baking dish with rinsed banana leaves, overlapping to cover the bottom and sides. Add marinated chicken and extra marinade, then cover with banana leaves to seal in moisture.
Cook covered in a 325°F oven for 90 minutes. Check after 60 minutes; baste chicken with juices and reseal for gentle, even cooking. Let rest 10 minutes after removing, then shred chicken and serve with reserved onions.