Harissa Oil: How to Make It and What to Use It On
Harissa oil is what happens when North Africa's great chilli paste meets the region's other staple — olive oil — and the result deserves a place in every kitchen that enjoys heat with depth. Where bottled chilli sauces bring sharpness and little else, harissa oil carries the full Maghrebi spice cupboard: smoky dried chillies, garlic, caraway, coriander, sometimes rose or preserved lemon, all suspended in fragrant olive oil that mellows the fire and carries it evenly across a dish. It takes five minutes to make at home, keeps for weeks, and improves almost everything it touches — eggs, couscous, soups, roast vegetables, grilled fish. This guide covers what harissa oil is, how to make it properly, the dishes it loves most, and why the olive oil you choose is honestly half the recipe.
For the olive oil half, see our cold-pressed extra virgin Marrakech olive oil.
The Short Answer
- Harissa oil is simply good harissa paste loosened with olive oil — typically one part paste to two or three parts oil — into a spoonable, drizzlable condiment.
- It takes five minutes: stir together, rest an hour for the flavours to marry, and keep it in the fridge: use a version made with shop-bought paste within the time the paste jar gives once opened, and a from-scratch version with fresh garlic within 4 days, or freeze it.
- The classic uses: spooned over eggs and shakshuka, swirled through couscous and grain bowls, finishing soups and stews, brushed on vegetables or fish before roasting.
- The olive oil is half the recipe — a fruity, peppery extra virgin lifts the harissa; a flat refined oil just dilutes it.
- Heat level is in your hands: more oil for gentler warmth, more paste — or hotter chillies — for fire.
- It is Morocco and Tunisia's answer to chilli crisp — older, deeper, and built on the region's own oil.
What Harissa Oil Is
Harissa itself is the backbone: a paste of dried red chillies rehydrated and pounded with garlic, salt, spices — caraway and coriander seed classically, often cumin — and olive oil, made across the Maghreb for centuries and most famously in Tunisia, with Morocco's own beloved variations. Thick, brick-red, and intense, it is a paste first: brilliant stirred into cooking but too dense to drizzle.
Harissa oil is the table-ready evolution: that paste thinned generously with olive oil until it pours. The oil does three jobs at once — it tames the heat from a punch to a glow, it carries the spices' aroma the way only fat can, and it turns a condiment you dollop into one you can swirl, brush, and drizzle. Across North African tables something like it has always existed — the spiced red oil pooling on top of a harissa dish was never wasted — and the bottled "chilli oil" trend has simply given the old habit a name and a jar.
How to Make It (Five Minutes, Honestly)
The quick method: take two tablespoons of good harissa paste — shop-bought is fine; Tunisian brands are classic — and stir in four to six tablespoons of extra virgin olive oil until you have a loose, glossy slick. Taste, and adjust: more oil for gentleness, more paste for fire, a pinch of salt if the paste was mild, a small squeeze of lemon for brightness. Let it sit for an hour so the oil takes on the spices, and it is ready.
The from-scratch method rewards the extra half hour: soak dried red chillies (a mix of mild and hot) in warm water until soft, then pound or blitz with garlic, salt, toasted caraway and coriander seeds, and enough olive oil to bring it together — then thin the fresh paste with more oil as above. Because it contains fresh garlic and soaked chillies under oil, keep this version in a clean jar in the fridge and use it within 4 days, or freeze it in small portions: extension-service food-safety guidance treats fresh garlic in oil as a botulism risk. The aroma on day three — when the oil has fully drunk the spices — is the argument for making it ahead.
What to Eat It With
Start with eggs — the pairing that converts everyone. A spoonful over fried eggs, folded through scrambled, or swirled across a skillet of shakshuka turns breakfast into the best meal of the week. From there: couscous and grains, where a swirl of harissa oil with a knob of butter is the classic finish; soups and stews, especially lentil, chickpea, and tomato-based ones, which take a red ribbon of it like Italian soups take pesto; and roasting, where vegetables, chicken, or firm fish brushed with harissa oil before the oven emerge burnished and deeply seasoned.
Then the improvisations: drizzled over hummus or labneh, shaken into vinaigrette for a kick, brushed onto flatbread before a hot pan, spooned over pizza, stirred through pasta with little more than garlic and parmesan. The rule of thumb is simple — anywhere you would reach for chilli crisp or hot sauce, harissa oil does the job with more perfume and less vinegar shout.
Why the Olive Oil Is Half the Recipe
Two ingredients means nowhere to hide. The chillies and spices bring the fire and fragrance — but the oil is the body, the carrier, and most of what actually lands on your food. Made with a flat, refined oil, harissa oil tastes like heat suspended in nothing. Made with a fresh, fruity extra virgin — ideally one with its own peppery bite — the condiment gains a second layer: the grassy, green warmth of the oil rising underneath the chilli, each making the other taste more alive. North African cooks never debated this; the harissa and the olive oil came from the same land and were made for each other. A Moroccan extra virgin under a Maghrebi spice paste is not a pairing so much as a homecoming — which is, of course, where our own bottle enters the story.
Why Sidr & Stone
If harissa oil is half olive oil, make it the good half. Ours:
- Single-estate — one family-owned grove on the plains outside Marrakech, Morocco; no blending across origins.
- Rain-fed — no irrigation; the trees take what the season gives.
- Organically grown — no synthetic fertilisers, pesticides, or herbicides.
- Single harvest — a small, limited batch; once it is gone, it is gone until the next harvest.
- Cold-pressed — flavour, aroma, and polyphenols preserved.
- Unfiltered extra virgin — minimally processed, and may show natural sediment.
- 100% natural — a single ingredient, nothing added.
- Dark glass with a gold label — protective packaging against light.
- 10% of profits to charity — Sidr & Stone's brand-wide commitment.
- Fulfilment in the UK, EU, and US.
A Moroccan oil under a North African condiment is the most natural pairing this blog will ever recommend — the same sun, the same soil, the same table.
Frequently Asked Questions
What is harissa oil?
A pourable condiment made by thinning harissa — the North African paste of dried chillies, garlic, and spices — with olive oil, typically one part paste to two or three parts oil. It drizzles where the paste dollops.
How do you make harissa oil?
Stir two tablespoons of harissa paste into four to six tablespoons of extra virgin olive oil, season to taste, and rest an hour. From scratch, soak and blend dried chillies with garlic, salt, and toasted caraway and coriander first.
How long does harissa oil keep?
Keep it in the fridge in a clean jar, with a film of oil poured over the surface after each use. Made with shop-bought paste, use it within the time the paste jar gives once opened; made from scratch with fresh garlic, use it within 4 days or freeze it. If it ever smells off, let it go.
How spicy is harissa oil?
As spicy as you make it — the oil-to-paste ratio is your volume dial. Standard harissa gives a warm, aromatic medium heat; rose harissa runs gentler, and adding hotter dried chillies turns it up.
What do you eat harissa oil with?
Eggs and shakshuka, couscous and grain bowls, lentil and chickpea soups, roast vegetables, grilled fish and chicken, hummus, flatbreads, even pasta and pizza — anywhere you want heat with fragrance.
Is harissa oil the same as chilli crisp?
Same family, different continent. Chilli crisp is Chinese, built on fried aromatics and crunch; harissa oil is North African, built on smoky chillies, warm spices, and olive oil. Many kitchens happily keep both.
Does the olive oil quality really matter in harissa oil?
Yes — it is most of what touches your food. A fruity, peppery extra virgin adds a whole second register of flavour; a refined oil merely dilutes the paste. Two-ingredient recipes are unforgiving that way.
Is olive oil a medicine?
No. Olive oil is a food, not a medicine. It has a long traditional history — including being honoured in the Prophetic Sunnah — and a substantial body of modern research, particularly around polyphenols, cardiovascular health, and the Mediterranean diet pattern. It can be a worthwhile part of a healthy routine, but it does not cure diseases and is not a substitute for medical care. Be cautious of any olive oil marketed with specific disease-cure claims.
Final Thoughts
Harissa oil is the rare condiment that costs five minutes and repays them at every meal for a month. It carries an entire region's spice tradition in a spoon, scales its heat to your taste, and asks only two things of you: decent harissa and an olive oil worth tasting on its own. Get those right and breakfast eggs, weeknight couscous, and Sunday's roast vegetables all quietly improve.
And if the pairing of Maghrebi spice and Moroccan oil appeals — as it should — you know where to find the oil half.
Our cold-pressed extra virgin Marrakech olive oil — single-estate, rain-fed, and picked when the fruit is ready — is available to pre-order. Limited single-harvest batch, estimated shipping from November 2026. Fulfilment in the UK, EU, and US.
Our extra virgin olive oil is grown organically on our own single-estate farm on the plains outside Marrakech: we control every step from tree to bottle, and no synthetic pesticides, herbicides or fertilisers are used. It is not yet certified organic — certification is in progress, and we will publish it as soon as it comes through.
Disclaimer: This article shares general culinary information and traditions at the time of writing; recipes and individual needs vary. Olive oil is a food, not a medicine, and is not a substitute for medical treatment of any condition. For any health concern, consult a qualified medical professional.