Combine yogurt, lemon juice, cumin, cinnamon, cayenne, black pepper, ginger, and salt in a large bowl.
STEP 2
Stir in chicken, cover, and refrigerate for 1 hour.
STEP 3
Preheat a grill for high heat.
STEP 4
Lightly oil the grill grate. Thread chicken onto skewers, and discard marinade.
STEP 5
Grill until juices run clear, about 5 minutes on each side.
STEP 6
Melt butter in a skillet over medium heat. Sauté garlic and jalapeño for 1 minute. Season with cumin, paprika, and salt. Stir in tomato sauce and cream. Simmer on low heat until thickened, about 20 minutes.
STEP 7
Add grilled chicken to sauce, and simmer for 10 minutes. Transfer to platter, and garnish with cilantro.