Inji Thokku

Use the same weight. Heat until smoking, then cool for 2 minutes before cooking; it is pungent and changes the flavour strongly.

Use the same weight. It is neutral, so add 1 tsp toasted sesame seeds for aroma.

Use the same weight. It is neutral and lacks sesame flavour; finish with a few drops of toasted sesame oil if you have it.

Use the same weight. The seeds are smaller and hotter; fry in hot oil until they pop, about 20–30 seconds, and reduce the heat if they darken too fast. The dish will be a little sharper.

Use the same weight. They are milder and larger; fry a few seconds longer until they pop. The finished dish will have less pungency.

Use 70% of the weight of whole seed, added with the other ground spices rather than fried whole. You lose the popping texture and the heat comes through more evenly.

Use 10 to 15% of the weight (about 1/4 teaspoon per chilli); imparts dry pungent heat and reddens the dish without the grassy crunch.

Use 1 dried pod per fresh green chilli; snap in half and temper in hot oil for a deeper, toastier heat.

Use equal weight. Sauté in hot fat until the raw allium smell disappears; slightly wetter, but provides identical warmth and pungency.

Use 20% to 25% of the weight (1 g for every 4 to 5 g fresh). Stir into the gravy; adds peppery heat and warmth, though it misses the crisp, zesty kick of raw root.

Use 180% of the weight of compressed tamarind; soak in three times its weight of boiling water for 15 minutes, knead, and strain out the thick pulp.

Use 35% of the weight dissolved in two tablespoons of warm water. Provides sharp tang, though the resulting sauce will be lighter in colour.

Use equal weight, added right at the end of cooking. Adds sharp acidity without the deep brown hue or pulpy thickness.