- 2 large Spanish onions (1 pound), peeled and left whole
- 2 tablespoons extra-virgin olive oil, plus more for drizzling
- 1/4 pound ground lamb
- 1 1/2 oil-packed anchovies, drained, patted dry, and finely chopped
- 1/2 tablespoon kosher salt
- 1/2 teaspoon freshly ground black pepper
- 3/4 cup raw jasmine rice
- 1/4 teaspoon ground allspice
- 1/4 teaspoon ground cinnamon
- 1 pinch ground nutmeg
- 3 cups low-sodium chicken broth, divided
- 3 tablespoons pomegranate molasses, divided
- 1 tablespoon chopped parsley, plus more for garnish
- 1 tablespoon chopped cilantro, plus more for garnish
- 3 tablespoons tomato paste
- 1/4 cup pomegranate seeds, for garnish
- Fill a medium pot with enough water to cover the onions and bring to a boil. Add whole onions, return to a boil, and cook until tender, 20 to 25 minutes. Using a slotted spoon, remove onions to a colander, drain, and let stand until cool enough to handle. Cut a 1/2-inch wedge from the outside to the core of each onion, then carefully peel 5 outer layers from each onion and reserve; chop the onion wedges and core, and reserve separately.
- In a medium skillet, heat the oil over medium-high. Add the chopped onion and cook, stirring, until golden, 4 to 5 minutes. Add the lamb, anchovies, salt, and pepper and cook, breaking meat up with a wooden spoon, until lamb is no longer pink, 5 to 6 minutes. Add the rice and cook, stirring, until translucent, 2 to 3 minutes. Add the spices and 1 cup broth; cook, stirring, until evaporated, 4 to 5 minutes. Transfer lamb mixture to a rimmed baking sheet and cool slightly; cover and refrigerate for 30 minutes. Remove from the refrigerator, transfer to a bowl, and add parsley, cilantro, and 1 tablespoon pomegranate molasses.
- Preheat the oven to 250°F. In a small bowl, whisk together the remaining broth and pomegranate molasses with the tomato paste. Wrap one onion layer around about 2 to 3 tablespoons filling and arrange seam-side down in a 2-quart shallow baking dish. Repeat with remaining onion layers and filling.
- Pour liquid over stuffed onions, cover with foil, and roast until tender and some of the liquid is absorbed, 2 hours (you can roast for up to 3 additional hours for softer, more savory onions). Remove from oven and uncover. Preheat broiler and broil until golden brown, 1 to 2 minutes. Let cool for 10 minutes. To serve, drizzle with oil, and garnish with pomegranate seeds, parsley, and cilantro.