Bihari Ahuna Mutton

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 equal weight, finely sliced. Shallots soften and brown faster, giving a slightly sweeter and more delicate base to curries.

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.

Use 1 g powder for every 1.5 g whole dried chilli; whisk with a spoonful of warm water and stir into the masala to provide identical ruby colour and mild heat.

Use 35% to 40% of the weight; discard seeds before tearing into oil to temper. Delivers a much fiercer heat, with significantly less red colouring.

Grind deseeded dried pods to an equal weight of powder; gives identical vivid red colour and gentle warmth.

Use 25% of the weight mixed with sweet paprika for colour; straight red chilli powder is substantially hotter and will make the dish fiery.

Use one-third of the weight; the sauce will be less intensely red and notably sharper in heat.

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.

Grate whole nutmeg finely on a microplane; use 80% to 100% of the weight. Freshly grated nutmeg has significantly more aromatic oils and a more vibrant aroma.

Use 100% to 120% of the weight. Mace is nutmeg's outer husk, providing almost identical warmth but with a lighter, slightly more delicate, floral edge.

Use 75% of the weight. Adds comparable warmth and sweetness, though it lacks the musky, nutty undertone of nutmeg.

Use equal weight of diced lamb leg; cooks 15 minutes faster but has less gelatinous richness in slow braises.

Use equal weight of pork shoulder; slow-cooks in roughly three-quarters of the time and produces a slightly sweeter gravy.

Use 1:1 by weight. Handles high-heat frying identically and introduces a very subtle, pleasant nuttiness.

Use 1:1 by weight. Yields a much richer, authentic aroma and a glossy, heavier mouthfeel.

Use 1:1 by weight. Heat until smoking, then cool slightly before cooking to temper its intensely pungent, sharp mustard kick.

Use a 2 cm piece (about 1 g) for every 1 to 2 bay leaves. Fry in whole-spice temperings; provides the cassia-like warmth typical of Indian tejpatta.

Use 0.5 g per leaf. Stir into the sauce during simmering; gives the same warm woodiness but darkens the colour slightly.

Use 0.5 g of ground seeds for each whole pod. Stir directly into the curry base; delivers identical smoky flavour without woody husks.

Use equal pod count or weight. Crack slightly and fry whole; tastes sweet, menthol-fresh, and floral rather than dark and smoky.

Use the same weight; about 1 clove weighs 3 g, so 3 g paste per clove.

Use the same weight; crush just before adding so the flavour stays fresh.

Use one-third of the weight, about 1 g powder for 3 g fresh clove; add a little water if the recipe needs moisture.

Use the same weight; heat and flavour are very close.

Use 1.5 to 2 times the weight; deseed for less heat. Larger chillies are more watery.

Use 1.5 to 2 times the weight; chop finely and adjust heat by tasting.

Use equal weight finely chopped; this is the exact same fresh herb.

Use half the weight finely chopped; provides vibrant green freshness, though the flavour profile becomes noticeably cooler and sharper.

Use 75% of the weight. Add midway through simmering; spreads heat evenly through the dish instead of delivering isolated bursts.

Use 50% of the weight. Stir in near the end of cooking; significantly darkens light gravies and provides an immediate, sharp bite.

Use 70% of the weight; add with ground spices or sauce bases rather than hot oil tempering, where it scorches quickly and turns bitter.

Use equal weight for oil tempering. Delivers an earthy profile with an additional musky, smoky, and slightly bitter edge.

Use 60% of the weight for tempering; offers comparable warm aroma, but leans sweet and liquorice-like rather than savoury and earthy.

True cinnamon: thinner, papery quills, milder and sweeter. Use about 1.5 times the weight, and taste.

Use about a third of the weight (0.5 g ground for a 2.5 cm piece), stirred in with the ground spices rather than fried whole, since the powder burns quickly.

Use 60-70% of the weight; stronger and more peppery, so taste before adding more.

Use 75% of the weight; stir in along with wet masala or tomato purée rather than frying in hot oil, as the fine powder burns instantly.

Use 50% of the weight for tempering in hot oil. Lacks the floral, sweet citrus flavour of coriander, introducing warm, pungent earthiness instead.

Use 50% of the weight in tempering; provides pleasant aromatic sweetness, though noticeably aniseedy rather than citrusy.

Use 75% of the weight. Fry in hot oil or ghee; has a sharper, more pronounced liquorice flavour, so use a lighter hand.

Use 60% of the weight. Stir into the sauce with ground masalas; provides identical sweet aniseed flavour without whole seed crunch.

Use one point (single carpel) per 1 g of fennel seeds. Simmer in gravies and remove before serving; gives a deeper, woodier liquorice aroma.

Use 1 g ground for 4 g whole (or 1 small pinch per 2 to 3 whole cloves). Add with spice powders; disperses intense warmth quickly, so use with restraint.

Use 100% of the weight whole in tempering. Imparts a warm, clove-like aromatic profile combined with hints of nutmeg and cinnamon.

Use 1 pod for 3 to 4 cloves in whole tempering. Shares a camphor-like warmth and medicinal depth, though it introduces a distinct smoky undertone.

Use 35 to 40% of the total pod weight; lightly bruise the seeds before frying in oil to release their essential oils.

Use 20 to 25% of the pod weight (about 1 generous pinch per pod); stir in toward the end of cooking so the delicate floral notes do not dissipate.

Use 1:1 by pod count or weight; crack gently before using, though it is slightly less intensely floral.

Use 0.5 g ground mace for 1 g mace blade; add towards the end of frying spices as ground powder burns much quicker than whole blades.

Grate finely, using 50% of the weight; sweeter, deeper, and slightly heavier in aroma than delicate mace.

Use 40% of the weight; stir in gently with ground spices, avoiding high direct heat to prevent bitterness.

Use the same weight; grey seeds make a darker paste but taste close.

Use the same weight, lightly toasted; the paste is nuttier and less thickening.

For 10 g poppy seeds use about 15 g cashew nut paste; it thickens more, so reduce other thickeners.

Use the same weight and dry-roast it yourself in a heavy pan over low heat until golden and nutty, then cool and grind if needed. Same flavour but extra step.

Use the same weight. Milder and smaller, so the dish is less nutty and slightly less sweet.

Use the same weight, but it is oilier and richer. Reduce added oil in the recipe and crush or grind as needed.