Slow-Cooker Sweet-and-Spicy Chicken

INGREDIENTS

• 2 teaspoons ground cumin
• 1/2 teaspoon ground cinnamon
• Coarse salt and ground pepper
• 4 chicken leg quarters (2 1/2 pounds total)
• 1 tablespoon extra-virgin olive oil
• 1 medium yellow onion, cut into 1/2-inch wedges (root end left intact)
• 3 garlic cloves, minced
• 3-inch piece peeled fresh ginger, sliced into rounds
• 1 can (28 ounces) diced tomatoes
• 1/2 cup raisins