Lamb Tagine With Chickpeas and Apricots

Name: Lamb Tagine With Chickpeas and Apricots
Ingredients: 3/4 cup dried chickpeas; 5 garlic cloves (2 whole, 3 chopped); 1 large cinnamon stick, broken in half; 2 tablespoons olive oil; 3 pounds 1 cubes lamb shoulder; Kosher salt and freshly ground black pepper; 1 large onion, diced; 5 teaspoons Ras-el-Hanout spice blend; 1 tablespoon chopped peeled ginger; 1 cup canned diced tomatoes with juices; 2 1/2 cups (or more) low-salt chicken stock; 1/2 cup halved dried apricots; Steamed couscous; Chopped fresh cilantro