Slit 1000 g aubergines lengthwise into quarters from the base, keeping the stems attached so the segments hold together. Arrange them in a wide, shallow dish.
Warm a small, dry frying pan over medium heat. Toast 12 g fresh coconut for roughly 1 minute until lightly browned, then tip onto a plate. In the same pan, toast the seeds for the paste alongside 2 tablespoon shelled peanuts for about 1 minute until fragrant, then transfer them to the plate with the coconut. Add the coriander seeds to the dry pan, roast for 1 minute, then grind them finely using a mortar and pestle or spice grinder.
Put the toasted coconut, the seeds for the paste, peanuts, 1 tablespoon molasses, and 1 g coriander leaf into a blender with a splash of water, and process into a smooth paste. Transfer the mixture to a bowl, season with salt to taste, then stir in the ground coriander seeds, the stuffing spices, and 1 teaspoon parched gram until evenly blended.
Stuff the spice mixture generously into the cut cavities of each aubergine, rubbing any excess paste over the outer skins.
Pour 125 g oil into a deep pan and bring to 180°C (350°F)—a bread cube should turn brown in 30 seconds. Take the pan off the heat briefly to cool slightly, then return it to medium heat. Fry the stuffed aubergines in small batches for 2 minutes until lightly browned, transferring each batch to a plate using a slotted spoon.
Toss 50 g onion into the residual hot oil and fry for around 5 minutes until pale golden. Return the browned aubergines to the pan, pour over 15.6 g tamarind extract, and cover with a lid. Reduce the heat to low and simmer for about 10 minutes, turning the aubergines gently so they remain intact, until the liquid reduces and leaves a thick sauce coating the vegetables.
Use 50% to 60% of the weight, soaked in equal parts warm water for 15 minutes before grinding. Works well for chutneys, though texture is slightly finer and sweeter.
Use 1.2 times the weight in curries. Adds creamy richness and authentic flavour, but makes gravies smoother and eliminates the grated, chewy mouthfeel.
Steep a tiny pinch (0.1 g per 2 g turmeric) in 2 tbsp warm water; use to match the rich golden hue. Contributes an aristocratic, honeyed floral flavour rather than earthy bitterness.
Use about 75–80% of the weight, e.g. 80 g for 100 g gram flour, and add a pinch of turmeric for colour. Less nutty and less crisp; good only for thickening or simple batters.
Use 50% of the weight mixed with equal parts ground coriander and a pinch of ground cinnamon, ground cloves, and ground green cardamom. Sprinkle near the end for a warming finish.
Use 80% of the weight, finely shredded and browned slowly with a pinch of asafoetida. Replicates the bulk and natural sweetness in gravies without allium.