Heat oil in a pan. Add the 2 sliced onions and fry until they are an even golden brown.
Tip: Remove them a shade lighter than your goal; they continue to cook from residual heat. Drain on paper towels.
In a bowl, mix the following to let flavours meld: Ginger-Garlic Paste, Turmeric, Red Chilli, Coriander Powder, Fresh Coriander (Keep the other 2 tbsp for garnish), Star Anise, Big Cardamom, Green Cardamom, Cloves, Black Peppercorns, Cinnamon, Cumin, 3 tbsp Whisked Curd, Fried Onions and salt.
Set this mixture aside.
Bring 10 cups of water to a rolling boil with 2 tsp salt.
Add the soaked Basmati rice.
The Test: Cook until the rice is 90% done. The grain should be long and soft on the outside but have a tiny, firm "needle-like" core in the center. It should snap rather than mash.
Reserve ¼ cup of the starchy rice water, then drain the rest immediately.
Heat 2 tbsp oil in a heavy-bottomed pot.
Add 2 tsp finely chopped garlic. Sauté for a few seconds until golden brown.
Add the Masala Marination from Step 2. Sauté for 3-4 minutes until oil separates.
Tip: If it dries out, add a splash of your reserved rice water.
Add 1 tsp green chilli and 2 tsp ginger (if using) and sauté for 2 minutes.
Layer: Spread the 90% cooked rice evenly over the masala.
Top: Drizzle 2 tsp lemon juice, the remaining 2 tbsp coriander, and the Saffron water. Sprinkle the remaining Fried Onions.
Seal: Cover the pot with a clean kitchen cloth, then place a plate (thali) on top. Place a heavy weight on the plate.
Why? The cloth absorbs steam, so water doesn't drip back and make the rice soggy.
Cook: Cook on the lowest heat for 10-12 minutes.
Turn off the heat and let it rest for 10 minutes. Gently fluff the rice from the sides with a flat spoon to mix the colorful layers.