Amritsari Haddock in Mustard Oil

Use the same weight. Cod is firmer and breaks less, so cook 2–3 minutes longer and handle gently.

Use the same weight. Hake is softer, so reduce the simmer by 2–3 minutes and turn the pieces carefully.

Use the same weight. Check doneness early, as thickness varies; stop cooking as soon as it flakes.

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.

Whisk equal weight thoroughly with cold water before stirring into hot sauce; thickens well, but imparts an earthy, nutty taste and pale golden colour.

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.

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 the same weight; taste first as it can be smokier and saltier. Add lime or amchoor if the dish needs more tang.

Use about half the weight, mixed with black salt and a pinch of ground cumin. It gives tang and saltiness but lacks the minty, asafoetida notes.

Use about half the weight and add lime juice to taste. It gives the salty, sulphurous edge but not the full tangy blend.

Use the same weight, sliced thinly and cooked 1 minute longer; not a raw-leaf texture.

Use the same weight; wilts faster and is less sweet.

Use the same weight; peppery, best raw or added at the end.

Use the same weight. It is slightly coarser, so stir a little longer to dissolve; in baking, grind briefly if a fine texture matters.

Use the same weight, but dissolve it earlier as it is coarser. It adds a light caramel note and a little colour.

Use the same weight; crush or grate jaggery first. It darkens the dish and adds molasses flavour, so reduce other liquid slightly.

Use equal weight, finely chopped. Red onion matches the pungency best, though it takes slightly longer to brown and lacks shallots' subtle sweetness.

Use 20% garlic combined with 80% onion by weight; finely slice to replicate the sharp, sweet aromatic profile.

Use 70% of the weight, make up the rest with water, and add a little granulated sugar if the liquor was sweet. Sharper and thinner.

Use at 70% of the weight with water. Milder and fruitier than pickling liquor.

Use at 60% of the weight with water; stronger and maltier, so reduce any other vinegar in the dish.

Same weight, lightly crushed; sweeter and milder but the closest match for the anise note.

Use two-thirds the weight; earthier and warmer, losing most of the aniseed character — good in breads and root vegetables.

Use half the weight; much more pungent and thyme-like, so add early in hot oil to soften it.

Use equal weight. Imparts an earthy, slightly bitter note in temperings, though it lacks nigella's oniony sharpness.

Use equal weight. Gives a similar speckled appearance and light crunch on breads, but provides a nutty rather than herbaceous, onion-like flavour.

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 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 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 the same weight; the difference is only the order of the names.

Mix with an equal weight of ginger paste and use the same total weight.

For 20 g paste use about 10 g crushed garlic and 10 g grated ginger root with a splash of water. Add a little extra water if the dish looks dry.

Use 1:1 by weight; cook straight from fresh or frozen with identical timing and sweetness.

Use 60% of the weight in dry dal; boil until tender yet firm before stirring in, lending a nuttier texture rather than sweet pop.