Boil the potatoes with skin in a pressure cooker for two whistles over high heat. Allow the steam to release naturally.
Allow potatoes to cool down a bit, peel them, and dice them into big-size even cubes. Keep aside.
Dry roast half of cumin seeds, coriander seeds and peppercorns in a pan for 2 – 3 minutes or until aromatic. Grind them to a coarse powder in a spice grinder or mortar and pestle. Set aside.
Heat oil in a pan over medium heat. Once the oil is hot, add the remaining cumin seeds (jeera) to it.
Allow the cumin seeds to splutter, releasing their aromatic flavour into the oil. This step is crucial for infusing the dish with the quintessential jeera aroma.
Add asafoetida and finely chopped ginger. Saute for 2 – 3 minutes.
Carefully add the diced potatoes to the pan. Spread them evenly in a single layer to ensure even cooking.
Sprinkle turmeric powder, salt, green chilli, and special seasoning masala over the potatoes.
Cover and cook the potatoes on medium heat, stirring occasionally to prevent them from sticking to the bottom of the pan. Allow the potatoes to cook until they turn golden brown and crispy on the edges.
Once the potatoes are cooked through and have developed a golden crust, add chopped coriander leaves. Toss the potatoes gently.
Serve Jeera Aloo with hot chapati, paratha or roti.