Poulet yassa is the dish that shows up at Senegalese family tables when someone wants to feed a crowd well without standing over the pot. Chicken, a great heap of onions, lemon, and a spoonful of mustard, left to sit together long enough that the flavors sink in. It comes from Casamance, the green southern region of Senegal, where cooks lean on citrus and onions the way other kitchens lean on cream. If you have searched "yassa chicken" or "poulet yassa recipe" and found a dozen versions that disagree, this is the plain walkthrough: what goes in, in what order, and how to serve it the way it is eaten at home. Over rice, always, with the onions spooned on top.
What yassa actually is
Yassa is two things at once: a marinade and a way of braising. The chicken sits in a bright mixture of lemon juice, mustard, garlic and a mountain of sliced onions for hours, often overnight. The onions are not a garnish here. They soften in the marinade, then cook down into the sauce until they turn sweet and jammy, and they are half the point of the dish. Mustard is the quiet ingredient that gives yassa its backbone, and lemon does the rest.
The cooking itself is simple. The chicken is browned, the marinated onions are added, everything braises until the sauce is glossy and the chicken is tender. Some families grill the chicken first for a smoky edge; others keep it all in one pan. Both are correct. What matters is the long soak beforehand and enough onions to make the sauce generous.
Ingredients (with US substitutions)
For four to six people:
- 3 pounds chicken - bone-in thighs and drumsticks hold up best. Skin-on is traditional; skinless works if you prefer.
- 4 to 6 large yellow onions, thinly sliced
- 1/2 cup fresh lemon juice, about 3 lemons (bottled lemon juice is a fine backup)
- 2 tablespoons Dijon mustard - smooth Dijon, not the bright yellow kind; if you only have yellow mustard, use a little less
- 4 cloves garlic, minced
- 2 tablespoons cider vinegar or white vinegar
- 1/4 cup neutral oil, such as canola or vegetable
- 1 to 2 Scotch bonnet or habanero peppers - for a milder pot, one jalapeño or a pinch of dried chili flakes
- 1 tablespoon Tonton Jeb Lemon & Ginger Salt, or kosher salt plus an extra squeeze of lemon
- 1 teaspoon freshly ground black pepper
- 2 bay leaves
- 1 cup water or light chicken stock
- Cooked Tonton Jeb Senegalese Local Rice, to serve
Two notes on substitutions. Lemon & Ginger Salt does a lot of the seasoning work here, so taste the marinade before adding more salt. And if you want real heat, a little chili salt stirred into the sauce at the end gets you there without hunting down fresh peppers.
Method
Make the marinade. In a large bowl, whisk the lemon juice, Dijon mustard, garlic, vinegar, oil, Lemon & Ginger Salt and black pepper. Taste it - it should be sharp and bright, almost too lemony on its own. It will calm down once it cooks.
Marinate the chicken and onions. Add the chicken, the sliced onions, the whole or halved peppers and the bay leaves. Toss everything with your hands until the onions are coated and the chicken is glossed with marinade. Cover and refrigerate at least 4 hours, ideally overnight. The longer the onions sit, the better they taste later.
Separate and brown. Pull the chicken out of the marinade and shake off the excess onions (save them and the liquid - they are the sauce). Heat a heavy pot or Dutch oven over medium-high heat and brown the chicken on all sides, in batches so it does not steam. Set the chicken aside.
Soften the onions. Pour off most of the fat, lower the heat to medium, and add the marinated onions to the pot. Cook them 10 to 12 minutes, stirring now and then, until they are soft and starting to turn golden at the edges.
Braise. Return the chicken to the pot with the onions, pour in the reserved marinade and the water or stock, and tuck in the bay leaves and peppers. Bring to a gentle simmer, then cover and cook 35 to 45 minutes, until the chicken is tender and cooked through.
Reduce and finish. Uncover and simmer another 10 to 15 minutes, until the sauce thickens and the onions collapse into a soft, glossy tangle. Fish out the bay leaves. Taste and adjust - more lemon for brightness, a little chili salt or Lemon & Ginger Salt for depth. If the sauce is looser than you want, keep it at a low simmer a few minutes longer.
Rest, then serve. Let the pot sit off the heat for 5 minutes so the sauce settles, then spoon the chicken and a generous scoop of onions and sauce over hot rice.
How to serve it
Yassa is a rice dish as much as a chicken dish, and in Senegal that rice is the local one. Cook Tonton Jeb Senegalese Local Rice according to the package, fluff it with a fork, and mound it onto plates or into a wide bowl. Ladle the chicken on top, then spoon over far more of the onions and sauce than feels polite. The rice should soak up the lemony juices at the bottom of the plate. A simple tomato-onion salad or a few fried plantains on the side rounds it out, and a cold glass of bissap or bouye to drink.
Cooked this way, yassa sits comfortably beside the other dishes in our kitchen that are worth a slow Sunday: the weeknight thieboudienne with its tomato-stained rice, and mafé, the peanut stew that is Senegal's other great Sunday pot. Between the three, you have a small repertoire of dishes that taste like home.
Make-ahead tip
Yassa is a gift to anyone cooking ahead, because it is better on the second day. Marinate the chicken and onions up to 48 hours in advance - that is the single best thing you can do for the flavor, and it means dinner is mostly hands-off when you finally cook. Once the dish is done, cool it, refrigerate it up to three days, and reheat it gently on the stove with a splash of water to loosen the sauce. If you would rather prep further, brown the chicken and soften the onions a day ahead, then combine and braise on the day. Either way, the onions only get sweeter with time.
Stock your pantry for yassa with Tonton Jeb Senegalese Local Rice and Lemon & Ginger Salt, both made in Senegal.