Senegalese chicken yassa is a bright, savory dish of chicken marinated with lemon, mustard, garlic and plenty of onions, then browned and simmered until tender. It is commonly served over rice, and its balance of sharp citrus, mellow cooked onions and gentle heat makes it satisfying without a long list of spices; family and regional versions vary.
Ingredients
- 3 lb bone-in, skin-on chicken thighs (1.35 kg), about 4 large thighs
- 2 lb yellow onions (900 g), thinly sliced, about 5 medium onions
- 1/2 cup fresh lemon juice (120 ml), from about 4 lemons
- 1/4 cup Dijon mustard (60 g)
- 3 tbsp neutral oil (45 ml), divided
- 4 garlic cloves (12 g), finely chopped or grated
- 1 1/2 tsp fine salt (9 g), divided, plus more to taste
- 1 tsp freshly ground black pepper (2 g)
- 1/2 tsp crushed red pepper flakes (1 g), or to taste
- 2 bay leaves
- 1 cup low-sodium chicken broth (240 ml)
- 1/2 cup pitted green olives (75 g), drained
- 1 tbsp water (15 ml), if needed to loosen the pan sauce
Instructions
- Make the marinade. In a large nonreactive bowl, whisk together the lemon juice, mustard, 1 tablespoon (15 ml) of the oil, garlic, 1 teaspoon (6 g) of the salt, black pepper and red pepper flakes. Add the sliced onions and toss to coat. The lemon is strongly acidic, so use a glass, stainless-steel or food-safe plastic bowl rather than an uncoated aluminum one.
- Marinate the chicken. Pat the thighs dry. Add them to the bowl and turn each piece so the marinade reaches both sides. Cover and refrigerate for 2 hours, turning the chicken once after about an hour. Keep the chicken chilled throughout; do not leave it on the counter to marinate. The onions will soften slightly and the lemon-mustard mixture will season the meat.
- Separate the chicken and onions. Lift the chicken from the marinade and set it on a plate. Scrape the onions into a separate bowl, then reserve all the liquid marinade. Brush excess onion pieces from the chicken so they do not burn during browning. Discard the plate or utensils that held raw chicken marinade unless they are washed before reuse.
- Brown the chicken. Heat the remaining 2 tablespoons (30 ml) oil in a wide, heavy pot or Dutch oven over medium-high heat. Working in batches if needed, place the thighs skin-side down and brown for 6 to 8 minutes. Turn and brown the other side for 3 to 4 minutes. Transfer the chicken to a clean plate. Browning in batches prevents crowding, which can make the chicken steam instead of develop color.
- Cook the onions. Reduce the heat to medium and add the sliced onions to the pot. Stir and scrape up the browned bits, cooking for about 20 to 25 minutes until the onions are very soft and golden at the edges. Stir every few minutes; lower the heat if they darken too quickly. If the pot becomes dry before the onions soften, add a tablespoon of water. This slow cooking is important because it rounds the sharpness of the lemon and mustard.
- Simmer the yassa. Pour in the reserved marinade and chicken broth, then add the bay leaves and remaining 1/2 teaspoon (3 g) salt. Return the chicken to the pot, skin-side up, along with any juices on the plate. Bring the liquid to a gentle simmer, cover partially, and cook for 15 to 20 minutes, turning the pieces once if they are not mostly submerged. Avoid a hard boil, which can toughen the meat and break the sauce.
- Check doneness and finish. Check the thickest part of each thigh with a food thermometer, avoiding the bone. The USDA FSIS safe minimum internal temperature for poultry is 165°F (74°C). Stir in the olives and simmer uncovered for 3 to 5 minutes so the sauce reduces slightly. Taste and adjust the salt, pepper or lemon. If the sauce is too concentrated, add a splash of water; if it seems thin, simmer a little longer with the chicken briefly removed.
- Rest and serve. Remove the bay leaves and let the chicken sit in the sauce for 5 minutes before serving. Spoon the onion mixture over the thighs and bring extra sauce to the table. Serve hot with rice or another suggested side.
Tips
- Give the onions time. Thin, even slices cook at a similar pace. Cook them until soft and lightly golden rather than rushing them over high heat; deeply scorched onions can make the sauce bitter.
- Adjust the lemon to taste. Lemons vary in acidity, and a particularly sharp batch can dominate. Start with the listed amount, then taste the finished sauce. If it needs mellowing, simmer it a few more minutes or add a small splash of broth—not sugar, which changes the savory profile.
- Use a practical mustard swap. Dijon is easy to find and gives a smooth, tangy base. If you cannot get it, use an equal amount of smooth yellow mustard; it is milder and slightly less complex. Avoid whole-grain mustard if you want the traditional-style sauce to stay smooth.
- Choose chicken pieces that finish together. Similar-size thighs are easier to cook evenly. If using boneless thighs, begin checking them earlier, since they may reach 165°F (74°C) before bone-in pieces. Do not rely on color or cooking time alone; use a thermometer.
Serving Suggestions
Serve chicken yassa over plain steamed long-grain rice so the grains can absorb the lemony onion sauce. White rice is a common, straightforward pairing; brown rice also works, though its nuttier flavor is more assertive and its cooking time is longer. Keep the rice lightly seasoned so it does not compete with the briny olives and tangy sauce.
For a fuller meal, add a simple green salad, sliced cucumber and tomato, or steamed greens. A crisp, lightly dressed vegetable side refreshes the plate and gives the rich onions a contrast. If you want more heat, put extra sliced fresh chile or red pepper flakes on the table rather than making the whole pot very spicy. Offer lemon wedges only if diners want extra citrus, since the sauce is already lemon-forward.
Variations
Use chicken legs or a whole cut-up chicken: Drumsticks and bone-in thighs work well, and a cut-up chicken gives diners a mix of pieces. Keep the pieces similar in size and check each one for 165°F (74°C), as smaller pieces may finish before larger ones. Breasts can be used, but they dry out more readily; add them later in the simmer and remove each piece as soon as it reaches the safe temperature.
Make it hotter or milder: The pepper flakes provide gentle heat, not a fixed level of spice. Omit them for a mild pot, or add a sliced chile with the onions for more warmth. Senegalese cooks and households season yassa differently, so the chile level is a matter of preference rather than a rule.
Replace the olives: Green olives add a salty, slightly sharp counterpoint, but they are optional. Capers can stand in, using 1 tablespoon (9 g) rinsed capers in place of the olives; they taste more briny, so taste the sauce before adding extra salt. You can also leave both out for a simpler lemon-and-onion version.
Try a different citrus balance: If fresh lemons are unavailable, bottled lemon juice can work in the marinade, though it may taste less fragrant. Do not substitute an equal volume of vinegar without tasting and adjusting: vinegar has a different sharpness and can make the sauce more forceful. A little lemon zest stirred in at the end can brighten a sauce made with bottled juice.
Storage and Reheating
Cool leftovers promptly and refrigerate them within 2 hours in a covered, shallow container. Store the chicken with its onion sauce so the meat stays moist. Refrigerated cooked chicken yassa keeps for 3 to 4 days. For longer storage, freeze it in a freezer-safe container for up to 3 months for best quality; thaw overnight in the refrigerator before reheating.
Reheat only the portion you plan to eat. Warm it gently in a covered saucepan over low to medium-low heat with a spoonful of water or broth, stirring the sauce occasionally, until the chicken reaches 165°F (74°C). You can also microwave it in a covered microwave-safe dish, turning or rearranging the pieces and checking the temperature in more than one spot. Avoid repeatedly cooling and reheating the whole batch, which can dry out the chicken.
Frequently Asked Questions
What is Senegalese chicken yassa?
Yassa, often called poulet yassa when made with chicken, is a Senegalese dish built around chicken, onions, lemon and mustard. The chicken is marinated, browned and cooked with the onions until the sauce is tender and savory-tangy. Recipes vary in their use of olives, chile and seasoning.
Can I marinate the chicken overnight?
Two hours gives the marinade time to season the chicken, but an overnight soak is not necessary. Because lemon juice is acidic, leaving the chicken in it for a very long time can change the texture, especially on the surface. If preparing ahead, marinate for up to about 8 hours in the refrigerator and keep the chicken covered and cold.
Can I make yassa with boneless chicken?
Yes. Boneless thighs are convenient and usually cook faster than bone-in thighs, so start checking their temperature during the simmer rather than following the full time automatically. Keep the onions and sauce as written, and remove chicken pieces individually once the thickest part reaches 165°F (74°C).
Why is my yassa sauce too sour?
Lemon strength varies, and sauce that has not simmered long enough can taste sharper. Continue cooking the onions and sauce gently for a few minutes, then taste again. A splash of broth or water can soften the intensity. Next time, begin with a little less lemon juice and add more at the end if needed.
Can I prepare the dish ahead?
Yes. You can marinate the chicken in the refrigerator for several hours, or cook the full dish a day ahead and refrigerate it promptly. The flavors settle as it rests, and the sauce reheats well. Reheat gently until every portion reaches 165°F (74°C), adding a little broth if the onions have absorbed much of the liquid.
What can I use instead of a Dutch oven?
Use any heavy, wide pot with a lid that fits securely. A wide base gives the chicken room to brown and helps the onions cook evenly. If your pot is small, brown the chicken in batches and take care not to crowd the onions; a skillet can brown the chicken before you transfer everything to a covered saucepan for simmering.
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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes
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