Tagine-Style Lamb Stew

John Willoughby's Tagine-Style Lamb Stew
For the original recipe, click here.
Serves 6 to 8

2 pounds lamb shoulder
2 tablespoons unsalted butter
1 small onion, grated (about 1/3 cup)
4 cloves garlic, minced
1 teaspoon black pepper
1 teaspoon salt
1 teaspoon ground cinnamon
1 teaspoon ground coriander
1 teaspoon ground cumin
1/2 teaspoon red pepper flakes
1/4 cup apricot preserves
1/3 cup red wine vinegar
1 20-ounce can chickpeas, drained and rinsed
2 cups chicken stock
1/4 cup chopped prunes
1/4 cup chopped fresh parsley
2 tablespoons lemon juice
Cooked couscous, for serving

1. Trim excess fat from the lamb and cut into 1-inch cubes. If your shoulder was sold to you with the bone and joint still in it, add it to the pot while you stew the meat for additional flavor (discard before serving).
2. In a Dutch oven, melt the butter over medium-low heat. Add the lamb, onion, garlic, pepper, salt, cinnamon, coriander, cumin, red pepper flakes, apricot preserves and vinegar and cook, stirring frequently, until the aroma of the spices is strong, about 5 to 7 minutes. (Do not allow the meat to brown.)
3. Add chickpeas and stock, bring just to a simmer, then reduce the heat to low, cover and simmer gently until the lamb is very tender, about 1 hour 15 minutes. Let cool to room temperature, then refrigerate overnight.
4. Twenty to thirty minutes before you're ready to serve, pull the pot from the fridge and gently scoop off the orange layer of fat that will have risen to the top. Put the pot over medium-low heat, adding the chopped prunes, and bring the stew to a very low simmer. Continue to cook, uncovered, until the pieces are nicely plumped, about 10 minutes more. Remove from heat, stir in the parsley and lemon juice, and serve with couscous.