Add all ingredients to the slow cooker and stir to combine. Cover and cook on high for 4-5 hours or on low for 7-8 hours, until the chicken is fully cooked and the sweet potatoes are tender.

Stovetop alternative: Heat a pot or Dutch oven over medium heat with a small drizzle of oil. Add the chicken and cook until browned. Add the onion, carrots and cook 5-7 minutes until softened. Stir in the spices and cook 30 seconds until fragrant. Add the sweet potatoes, chickpeas, diced tomatoes and a pinch of salt. Bring to a gentle boil, then reduce heat to low, cover, and simmer for 30-40 minutes, stirring occasionally, until the chicken is cooked through and the vegetables are tender. Adjust seasoning and serve.