In a heavy-bottomed pot or tagine, heat the olive oil over medium-high heat.
Add the cubed lamb shoulder and sear until browned on all sides, then remove and set aside.
Lower the heat to medium and sauté the diced onion and sliced carrots until the onion is translucent.
Stir in the minced garlic, cumin, ginger, cinnamon, sea salt, and black pepper, cooking for one minute until highly aromatic.
Return the lamb to the pot along with the chickpeas and beef broth, bringing the mixture to a gentle simmer.
Cover and cook for 45-60 minutes, or until the lamb is tender and the sauce has thickened slightly.
While the tagine simmers, prepare the pearl couscous according to package directions using water or additional broth.
Serve the lamb tagine over a bed of pearl couscous and garnish with freshly chopped cilantro.