HrousFermented onion chilli paste
Hrous is the old pantry paste of Sfax and Djerba, made in late spring when the sweet onions come out of the ground and stored for months to season the year's fish couscous, stews, lablabi and simple saucers of olive oil for dipping bread. The onions are sliced, salted heavily and left for about a week to wilt and ferment, then squeezed dry and pounded with sweet and hot dried chilli, turmeric, caraway, coriander and crushed dried rosebuds, and packed into a jar under olive oil. A teaspoon goes a long way: it is brick red, salty, sour and fiery, with a funky onion sweetness and a perfumed finish from the roses, earthier and more complex than harissa. Sfaxi families stir it into fish dishes and spread it thinly on bread with olive oil at breakfast. The mistake to avoid is cutting the salt to make it milder, as the salt is what keeps the ferment safe; stick to 10% of the onion weight. The onions are ready when they are limp, smell pleasantly sour and pickled, and the paste turns glossy after a week under oil. Chef's tip: grind the rosebuds fresh, just before mixing, for the full perfume.
























