Harissa
Also known as hrissa, harisa, rose harissa, harissa paste, harissa powder
Quick answer
A Tunisian chilli paste, not a dry spice mix — and that is the first thing to know, because most of what is sold as harissa outside North Africa is a powder that behaves nothing like it.
In essentially every version: Dried red chillies, rehydrated, Garlic, Caraway, Coriander seed, Cumin, Salt.
3distinct versions are recorded below. None of them is presented as the correct one, because there isn’t one.
What goes in it
The defining core first, then the versions. Roles are recorded so it is clear what each ingredient is doing.
| Ingredient | Role | How essential |
|---|---|---|
| Chilli powderWhole dried chillies soaked and pounded, rather than a powder. The variety is what sets the heat and the fruitiness, and Tunisian recipes name specific ones. | base | defining |
| Garlic | primary aromatic | defining |
| Caraway (ground)The component that most distinguishes Tunisian harissa from a generic chilli paste, and the one most often left out of commercial versions. | primary aromatic | defining |
| Coriander seed (ground) | supporting aromatic | usual |
| Cumin (ground) | supporting aromatic | usual |
| SaltStructural rather than seasoning: salt and oil are what preserve the paste. | salt | defining |
Harissa varies by household, by region and — most consequentially for anyone buying it — by whether it is a paste or a powder. The traditional product is a wet paste of rehydrated chillies pounded with garlic, spices, salt and olive oil, and it is used by the spoonful. A dry powder sold under the same name is a different ingredient with different behaviour: it has no oil to carry the aroma, no garlic, and it needs rehydrating or blooming to be usable. Rose harissa, now widely sold in Britain, adds dried rose petals and is a genuine regional variation rather than a marketing invention, though it is sweeter and milder than most Tunisian versions. Caraway is the component most often reduced or omitted in commercial paste, and its absence is the commonest reason a jar tastes like generic chilli paste.
The versions
Each attributed, with how firm its proportions are stated plainly.
Tunisian, traditional paste
regional traditionalTunisian household practice · proportions representative · medium confidence
Rehydrated dried chillies pounded with garlic, caraway, coriander and salt, loosened with olive oil.
| Ingredient | Parts | Share |
|---|---|---|
| Dried red chillies, soaked | 10 | 68% |
| Garlic | 2 | 14% |
| Caraway | 1 | 7% |
| Coriander seed | 0.5–1 | 5% |
| Salt | 1 | 7% |
Olive oil is added to loosen and to seal, and is not counted in these parts because the quantity depends on how the paste is stored rather than on how it tastes.
Rose harissa
regional traditionalRegional variation, widely sold in Britain · proportions representative · low confidence
Dried rose petals added to the paste, giving a floral note and a milder, sweeter result.
| Ingredient | Parts | Share |
|---|---|---|
| Dried red chillies, soaked | 8 | 62% |
| Dried rose petals | 1 | 8% |
| Garlic | 2 | 15% |
| Caraway | 1 | 8% |
| Salt | 1 | 8% |
Recorded at low confidence. The style is well attested and widely sold, but SpiceHQ holds no documented source for these proportions.
Dry harissa powder
commercial typicalCommercial product · proportions unspecified · low confidence
A dry spice mix sold under the harissa name. Convenient, keeps for months, and is not the same ingredient as the paste.
| Ingredient | Parts | Share |
|---|---|---|
| Chilli powder | 6 | 62% |
| Caraway | 1 | 10% |
| Cumin | 1 | 10% |
| Coriander seed | 1 | 10% |
| Salt | 0.5–1 | 8% |
Commercial dry blends vary widely and several contain no caraway at all. Recorded as an illustration of the category rather than as a formulation to follow.
Using it
A condiment before it is an ingredient: served alongside food as often as cooked into it. Stirred into couscous, brik and stews; spread on grilled meat and fish; whisked into dressings; served plain with bread and olive oil. In Tunisia it appears at most meals. Outside North Africa it is most often used as a paste stirred into roast vegetables, soups and marinades, where a spoonful supplies heat, garlic and acidity in one step.
Hot, but the heat is not the point — a good harissa is fruity from the rehydrated chillies, sharp with garlic, and carries a distinct anise-adjacent note from the caraway that nothing else in North African cooking supplies. Commercial versions that skimp on caraway taste like generic chilli paste, which is the difference most people notice without being able to name.
Moderate to hot, varying widely by the chilli used. Tunisian versions are generally hotter than the rose harissa commonly sold in Britain.
Scaling: Harissa is made to taste rather than to a ratio, and the chilli variety changes the answer more than the proportions do. Scale the aromatics with the chilli rather than fixing them, and add salt last — it is doing preservation work as well as seasoning, so a paste for keeping needs more than one for immediate use.
If you have none
Chilli powder with Caraway and Garlic and Coriander seed
Good matchUse: ~1× by volume — Roughly six parts chilli to one caraway, one garlic and one coriander, loosened with olive oil to a paste.
Close, because harissa is a short list and the reconstruction can include all of it. The caraway is the part that matters: it is what separates harissa from a generic chilli paste, and leaving it out produces exactly the thing commercial jars are criticised for. Rehydrated whole dried chillies give a fruitier result than powder, and are worth the twenty minutes if you have them.
| Flavour | Aroma | Colour | Heat |
|---|---|---|---|
| close | close | close | similar |
Works for
- Stirring into stews, couscous, roast vegetables and dressings
- Marinades for grilled meat and fish
Does not work for
- Keeping. A fresh paste without the salt content and oil seal of a jarred one belongs in the fridge and lasts days, not months.
- Rose harissa, which needs dried rose petals and is a distinct product
The commonest failure is reaching for sriracha or gochujang. Both are chilli pastes and neither is a substitute: sriracha is sweet and vinegary, gochujang is fermented and sweet, and neither carries caraway or garlic in the way harissa does.
Chilli flakes with Garlic
SituationalUse: ~0.5× by volume — Half the volume of harissa called for, warmed in oil with crushed garlic.
The emergency version, for a cupboard with no caraway. It supplies heat, garlic and an oily carrier, which is most of what harissa does mechanically, and none of what makes it Tunisian. Honest as a stopgap and not as a substitute.
| Flavour | Aroma | Colour | Heat |
|---|---|---|---|
| partial | partial | partial | similar |
Works for
- A stew or soup where the harissa was providing heat rather than character
- Dressings and marinades
Does not work for
- Anywhere harissa is served as a condiment in its own right, where it has nothing to hide behind
- Dishes named for it
Storage
Good for: 6–12 months (typically 9 months)
Cool, dark, dry and closed.
This is the one blend in this dataset where the distinction genuinely matters in both directions. A stale powder is a quality problem and nothing more. A paste is a wet, low-acid product preserved by salt and an oil seal, and once opened it belongs in the fridge and can genuinely spoil — mould on harissa is not a cosmetic issue.
Allergens and safety
Harissa paste is a wet product preserved by salt and an oil seal. Refrigerate after opening and keep it covered with oil.
Unlike every dry blend in this dataset, harissa paste is a moist, low-acid preparation whose keeping quality depends on salt content and an intact oil layer excluding air. This is a handling instruction rather than a claim about any specific hazard, and it does not apply to the dry powder sold under the same name.
Culture and origin
Tunisia, where it is a daily condiment rather than an occasional seasoning, with related preparations across Algeria, Libya and Morocco. Its existence depends on chilli, which reached North Africa after Columbian contact, so harissa is a comparatively recent tradition built on an old one.
Tunisia
Harissa is a daily staple rather than an occasional seasoning, present at most meals and made at home in quantity. It is close to a national ingredient, and describing it as generically North African understates how specifically Tunisian it is.
Britain and Western Europe
Harissa arrived as a jarred paste and became widely available in the 2010s, most visibly as rose harissa. The version most British cooks know is milder and sweeter than the Tunisian one, which is worth knowing before adjusting a recipe written for either.