Chicken marinated in a flood of lemon juice, Dijon mustard and slow-cooked onions, then braised until the onions become a silky, tangy gravy poured over white rice — the proudest dish of Senegal's Casamance.
Yassa poulet is Senegal's great export to West African cookery — a dish born in the southern Casamance region among the Jola people and adopted with such enthusiasm in Dakar, Saint-Louis, Banjul and Bissau that it is now claimed across the entire region. Its method is deceptively simple: chicken pieces are submerged for hours in a marinade of lemon juice, raw white vinegar, fierce Dijon mustard, and an almost absurd quantity of onions — easily three onions per chicken — along with garlic, scotch-bonnet chilli, bay, and a generous spoon of stock powder. After marinating, the chicken is browned over hardwood or charcoal until the skin blisters, then returned to the marinade onions, which slowly collapse in their own juices over low heat for an hour. What begins as a sharp, eye-watering raw onion mass transforms into something glossy, jammy and citrus-bright, the marinade reducing into a thick golden gravy that wears the perfume of mustard and lemon like a heavy cologne. The chicken, meanwhile, becomes tender enough to lift off the bone with a spoon. Yassa is served traditionally on a single communal platter — a mountain of long-grain white rice in the centre, the chicken pieces nested in their onion gravy on top, with green olives, a wedge of lemon and sometimes a few cubes of yellow Maggi-stained carrot for colour. Eaten with the right hand around a low table, it is the dish of weddings, naming ceremonies and Friday lunches across the Wolof and Jola heartlands — sour, fragrant, oniony, and impossibly comforting.
Serves 6
In a very large bowl, combine the sliced onions, lemon juice, vinegar, Dijon mustard, garlic, scotch bonnet, bay, pepper, crumbled Maggi cube, and 1 tsp salt. Massage everything together hard with your hands for 2 minutes — the onions should slacken and weep liquid. Nestle the chicken pieces into the marinade, making sure each piece is coated and partly submerged.
Wear gloves if the scotch bonnet worries you — and never burst it, just pierce twice with a knife.
Cover the bowl and refrigerate at minimum 4 hours, ideally overnight (up to 24 hours). Turn the chicken once halfway. The lemon will partly cure the meat and the onions will reduce in volume by a third as they release water.
Lift the chicken from the marinade, shaking off the onions (reserve everything). Pat skin dry and sear in a hot ridged grill pan or over charcoal for 4–5 minutes per side until well-browned and lightly blistered — the colour is essential for the final flavour. The chicken will not be cooked through yet.
If using charcoal, do it outdoors — the smell of citrus mustard onions on coals is the soul of yassa.
Heat 2 tbsp neutral oil in a wide heavy pot over medium heat. Tip in all the reserved onion-marinade mixture (liquid and solids), bring to a simmer, then reduce heat to low and cook 25 minutes uncovered, stirring every 5 minutes. The onions will collapse from sharp white to soft golden, and the liquid will reduce by half.
Nestle the seared chicken pieces and any plate juices back into the onion pot. The liquid should come halfway up the chicken — top up with 100 ml hot water if needed. Cover and simmer gently 30–35 minutes, turning chicken pieces once, until meat is falling-tender and the gravy is glossy and thick.
Lift the chicken to a warm platter. Increase heat under the onion gravy to medium-high and reduce uncovered 5–8 minutes until thick enough to coat a spoon. Stir in the olives and warm through for 1 minute. Taste and adjust — it should be assertively tangy, mustardy, slightly sweet from the onions, with a back-of-throat chilli warmth.
Mound steamed white rice (broken rice if you can find it at African groceries) on a large platter. Spoon over the onion gravy and arrange chicken pieces on top. Scatter olives, tuck the spent scotch bonnet to one side as a warning, and bring to the table with extra lemon wedges and a jug of cold bissap (hibiscus juice) to cut the richness.
Don't reduce the onion quantity — yassa is fundamentally an onion dish carried by chicken, not the reverse.
Real broken rice (riz brisé) absorbs gravy far better than long-grain; West African groceries sell it cheaply.
Refrigerate leftovers overnight and reheat the next day — the flavour deepens noticeably, like a curry.
If your mustard is grainy, blitz the finished gravy briefly with a stick blender for a silkier sauce — purists won't, but it's delicious.
Yassa poisson — replace chicken with thick fish steaks (grouper, snapper) and shorten the braise to 15 minutes.
Yassa boeuf — use beef shin or short rib and extend braise to 2 hours for a Sunday version.
Gambian yassa — add a spoon of palm oil and a chopped carrot for a sweeter, more reddish finish.
Add 200 g sautéed mushrooms in the final 10 minutes for a modern Dakar bistro touch.
Refrigerate in the sauce up to 4 days; flavour improves overnight. Reheat gently on the stove with a splash of water. Freezes well 3 months — defrost in fridge overnight before reheating. Rice should be stored separately and reheated with a splash of water in the microwave.
Yassa originates with the Jola people of the Casamance region in southern Senegal, where it was traditionally made with grilled fish and palm vinegar. The chicken-mustard version emerged in the early 20th century under French colonial influence, when Dijon mustard arrived in Dakar markets, and became Senegal's national dish by the 1960s, served at independence celebrations and now in every Senegalese restaurant worldwide.
You can substitute 1 tsp salt and 1 tsp chicken stock powder, but the truth is Maggi is fundamental to West African cookery and yassa tastes off without it — every Senegalese kitchen has a stash.
Not if you keep the scotch bonnet whole. It releases perfume and gentle warmth but not real heat. For hot yassa, mince half the chilli into the marinade.
Skip-able but the smoky char is half the dish. At minimum sear it hard in a dry cast-iron pan to develop browning.
Riz brisé (broken rice) is traditional and absorbs gravy best. Long-grain white rice is fine; jasmine works too. Avoid basmati — it's too perfumed and competes with the lemon.
Per serving (420g / 14.8 oz) · 6 servings total
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