Harissa Hot Sauce

Ingredients

• 8 dried guagillo chiles
• 8 dried New Mexico chiles
• 0.5 tsp caraway seeds
• 0.25 tsp coriander seeds
• 0.25 tsp cumin seeds
• 1 tsp dried mint leaves
• 3 tbsp olive oil
• 1.5 tsp kosher salt
• 5 garlic cloves
• 1 lemon juice

Method

Toast the caraway, coriander, and cumin in a dry skillet over medium heat. Move them constantly — they'll perfume the air within two minutes, but keep going until the aroma turns deeper and almost nutty, around four minutes total. Tip them onto a plate immediately; they'll continue cooking in residual heat. Grind to a coarse powder using a spice grinder or mortar and pestle. This spice-blending step matters because whole seeds are dormant; toasting volatilises their oils and fractures the cell walls, releasing the esters that give harissa its savoury depth.

Cover the dried guajillo and New Mexico chiles with boiling water and weight them down with a plate — they'll float otherwise and hydrate unevenly. After 20 minutes they should be pliant but not mushy; the flesh will separate easily from the seed pod. Drain them, split lengthwise, and scrape out the seeds and white membrane using the blunt edge of a knife. This isn't about heat reduction; it's about removing the bitterness that concentrated in those structures during drying.

Add the drained chiles, ground spices, garlic cloves, salt, and olive oil to a food processor. Pulse briefly to break everything down, then run continuously until the texture shifts from sandy to glossy and thick — roughly two minutes. Stop and scrape the bowl halfway through to ensure the paste develops evenly. The dried-chiles break down into a fine suspension rather than a purée; you're after a sauce dense enough to cling to a spoon but loose enough to pour.

Finish with fresh lemon juice and pulse once more to combine. Taste and adjust salt; it should be assertive enough that the heat and spice feel integrated rather than scattered. The acid will brighten the earthiness of the toasted spices and cut through the fat from the olive oil. Use within a week, refrigerated, or preserve it by stirring a thin layer of olive oil across the surface to prevent oxidation and mould.