Heat the vegetable oil in a large pot over medium heat.
Add the chopped onion and cook for about 5 minutes until soft and translucent.
Stir in the garlic and ginger and cook for 1 minute until fragrant.
Add the curry powder, turmeric, and cumin. Stir continuously for about 30 seconds to toast the spices.
Add the cubed sweet potatoes and chickpeas, stirring well to coat them with the spice mixture.
Pour in the coconut milk and enough water to just cover the vegetables.
Bring to a gentle boil, then reduce the heat and simmer for 15–20 minutes, or until the sweet potatoes are fork tender.
Season with salt and pepper to taste.
Garnish generously with fresh cilantro before serving your Sweet Potato and Chickpea Curry.
Enjoy with steamed rice, warm naan, or quinoa.