Heat oil in a wide pan on medium heat. Add onion and garlic, reduce heat to low, and sauté for 2–3 minutes.
Add cumin seeds and scotch bonnet. Cook for another 1–2 minutes.
Add the Cumin Seeds (1/2 teaspoon), along with the Scotch Bonnet Pepper (1/2) and Freshly Ground Black Pepper (1/4 teaspoon) and cook another 1-2 minutes.
Stir in curry powder and cook for 3–5 minutes, stirring constantly, to toast and deepen flavor.
Add potatoes and increase heat to medium-high. Stir well to coat in the curry base.
Add chickpeas, water, and green seasoning. Bring to a boil.
Reduce heat, cover slightly, and simmer gently for 25 minutes. Add salt and stir.
Use a spoon to mash a few chickpeas and potatoes to thicken the sauce. Add spinach and cover. Cook for 2–3 more minutes until wilted.
Taste for salt and serve hot with roti or rice.