Peel and boil the potatoes till almost cooked. Drain and set aside.
In a saucepan, heat ghee. Splutter the cumin seeds.
Add the hing and ginger garlic paste and saute for a few seconds.
Add the chopped spinach and saute till just wilted.
Add in the turmeric, red chilli, black pepper and coriander powder and saute till raw smell is gone.
Add in the cooked potato, toss well to coat. Sprinkle in some salt and water.
Cook on simmer for five minutes or till the curry is cooked.
Sprinkle the garam masala powder and kasuri methi, toss well and serve hot with chapathis.