Masor Tenga

Use an equal weight; cut into the same size pieces and add near the end so it does not flake apart.

Use an equal weight; it is softer, so simmer gently for 3–5 minutes less.

Use an equal weight; it holds well in curry but is richer, so skim excess oil if needed.

Use 50% of the weight. Mimics turmeric's warm, earthy, rhizome background, but provides none of the golden-yellow colour.

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 equal weight. It handles high-heat cooking well, but lacks the signature pungent, nasal heat of mustard oil.

Use equal weight. Neutral in flavour, so your curry will lack the characteristic Bengali or North Indian pungent punch.

Use 50% of the weight, crush or grind. Sharper heat and less maple-bitter; fry briefly in oil before adding.

Use the same weight, crush lightly. Similar bitter-seed note but more aniseed; reduce other sweet spices slightly.

Use 25–30% of the weight, crush. Much stronger thyme-like flavour; do not overdo.

Use the same weight; peel, deseed and cut into similar pieces. It is firmer and slightly more watery, so add a little less water and cook 5 minutes longer.

Use the same weight; no need to peel. It cooks faster and releases water, so reduce the recipe liquid by about 10% and add it later.

Use the same weight; peel and remove the stone. It stays firmer, so cut it smaller and cook a few minutes longer.

Use 40% to 50% of the fresh tomato weight mixed with a splash of water. Imparts a deeper red colour, thicker sauce, and slightly sweeter cooked flavour.

Use 60% of the weight, whisked smooth and added on low heat. Provides rich body and sourness, though the gravy becomes paler and creamier.

Use equal volume or weight; slightly sweeter and less pungent, but otherwise an imperceptible swap.

Use 25% of the weight; imparts dry, fruity sourness, best stirred in right at the end of cooking.

Use 50% of the weight; delivers pleasant fruity tang but turns pale sauces considerably darker.