What to use instead of garlic

Use: ~1.25× by volume — Slightly more of the coarser grind by volume, because it packs less densely into a spoon. By mass they are the same thing.

The same dried garlic at a different particle size, and the difference is entirely one of behaviour. Powder dissolves and disperses instantly and cakes readily; granules resist clumping, stay visible, and release more slowly. For a rub the granule is generally better; for a sauce the powder is.

Same genus, same broad sulphur chemistry, and a genuinely different result. Onion is sweeter, milder and much wetter, and it needs time and volume to give what a clove of garlic gives in a minute. Cooked slowly it supplies a comparable savoury base; used quickly it supplies moisture and not much else.

Recorded because it is what people actually do, not because it is good. Garlic and onion are companions in most cooking rather than alternatives, and the honest answer to "what replaces garlic" is usually asafoetida or nothing.

The established answer rather than an improvisation. Cooked in hot fat, asafoetida gives the savoury allium depth of fried garlic and onion — the same family of sulphur compounds is doing the work, which is why the swap holds up at all. What it does not give is the raw pungency: allicin is created by cutting a fresh clove and nothing else in the kitchen makes it. So a dish that cooked its garlic gains almost everything back, and a dish that did not gains none of it.

Cuisine: Moves the dish decisively towards South Asian cooking. Asafoetida is not a neutral savoury note in a French or Italian context, where it will read as an unfamiliar spice rather than as absent garlic.

Quantity is the trap and no ratio is published here, because the two commercial products differ by a factor of tens: compounded asafoetida powder is mostly flour, and pure resin is not. A pinch of the compounded powder against a couple of cloves is the customary starting point; the same volume of resin would ruin the dish.

Not two strengths of one ingredient. Drying destroys allicin, so the powder has none of the raw bite and reads instead as concentrated, sweet and slightly cooked. It also brings no moisture and no bulk. In a dish where the garlic was going to be cooked down anyway the swap is barely noticeable; in one where a cut clove was the point it removes the flavour entirely and leaves a dusty sweetness behind.

SpiceHQ publishes no fresh-to-powder ratio. Ratios circulate widely and they all assume the two are doing the same job, which is the thing that is not true — the question is whether the dish wanted raw pungency or cooked sweetness, and no number answers it.

Use: ~6× by volume — Around one small clove, finely grated, for a quarter-teaspoon of powder — so roughly six times the volume once minced. Conventional rather than measured, and clove size varies by a factor of three.

Not a straight exchange, because drying changes the chemistry rather than concentrating it. Fresh garlic generates allicin when the cells are cut, which is sharp, volatile and short-lived; dried garlic has already been through that reaction and tastes sweeter, more toasted and less pungent. Fresh garlic also brings water and will not disperse through a dry rub. In a wet dish the swap works well and the result is livelier; in a rub or a seasoning mix it fails on physics rather than on flavour.

The reverse question — powder standing in for fresh — is the more common one and the answer is the same relationship read backwards: use about a sixth the volume, and expect a sweeter, flatter, more even garlic note.