Yassa Chicken — West Africa's Tangy Onion and Lemon Chicken Cooked Seed Oil Free

By Savannah Ryan — The Foodie Kitchen

Yassa Chicken is one of West Africa's great underrated dishes. While jollof rice gets the international attention, Yassa quietly delivers something arguably more interesting — chicken caramelised in its own juices, bathed in a deeply savoury sauce built from slow-cooked onions, Dijon mustard, garlic and lemon. The sauce reduces to something between a gravy and a condiment. The chicken falls apart. The onions are so deeply cooked they dissolve into the sauce. It is extraordinary, and it requires nothing more than olive oil, patience, and good ingredients.

This recipe comes directly from Savor Africa by Savannah Ryan. The vegetable oil in the original recipe is replaced with extra virgin olive oil — the MAHA upgrade that makes this dish even better than the original. Find more in the African recipes collection and the chicken recipes collection.

The Marinade Is Everything

Yassa's flavour comes almost entirely from the marinade — thinly sliced onions, minced garlic, Dijon mustard, fresh lemon juice, olive oil and optional soy sauce. The chicken marinates in this mixture for at least 2 hours, overnight if possible. The lemon acid begins to break down the chicken's surface proteins slightly, the mustard emulsifies with the olive oil to coat every piece, and the onion compounds penetrate deeply into the meat.

When the marinated chicken hits a hot pan, the sugars in the onion and mustard caramelise immediately and create a crust that seals in everything the marinade delivered. The reserved marinade goes back into the pot with the chicken broth and reduces into the sauce. This is a complete flavour system — every element of the marinade becomes part of the final dish. Nothing is wasted. As documented by Serious Eats, olive oil-based marinades penetrate muscle fibre with fat-soluble flavour compounds in a way that water-based marinades cannot, producing significantly deeper flavour in the finished dish.

The MAHA Fat — Olive Oil

The original recipe uses vegetable oil. This version uses extra virgin olive oil throughout — in the marinade, for browning the chicken, and for cooking the sauce base. Olive oil's monounsaturated fat profile makes it stable at the medium-high temperatures this recipe requires, and its flavour complements the mustard and lemon in the sauce rather than competing with them. According to PubMed research, extra virgin olive oil's polyphenol content is preserved at the cooking temperatures used here — unlike polyunsaturated seed oils which oxidise and produce inflammatory compounds at these same temperatures.

West African Yassa Chicken — Seed Oil Free

Serves 4 | Marinate 2 hours minimum | Cook 50 minutes

For the Marinade:

6–8 bone-in skin-on chicken thighs · 2 large onions, very thinly sliced · 4 cloves garlic, minced · ¼ cup Dijon mustard · Juice of 1 large lemon · 3 tablespoons extra virgin olive oil · 1 tablespoon soy sauce (optional) · Salt and black pepper · 1–2 fresh chillies (optional)

For the Sauce:

2 large onions, thinly sliced · 2 tablespoons extra virgin olive oil · 2 tomatoes, roughly chopped · ½ cup chicken stock · Salt and black pepper

Method:

1. Marinate. Combine chicken, sliced onions, garlic, mustard, lemon juice, olive oil, soy sauce and chillies in a large bowl. Season well. Toss to coat every piece thoroughly. Cover and refrigerate for a minimum of 2 hours — overnight produces significantly better results.

2. Brown the chicken. Remove chicken from marinade and reserve the marinade — do not discard it. Heat 2 tablespoons olive oil in a large heavy pot over medium-high heat. Brown the chicken pieces skin-side down first, 5 to 7 minutes per side until deeply golden. Work in batches — do not crowd the pan. Remove browned chicken and set aside.

3. Build the sauce. In the same pot add the fresh sliced onions and cook over medium heat, stirring occasionally, for 10 to 12 minutes until deeply caramelised and golden. Add the tomatoes and cook for 5 more minutes. Pour in the reserved marinade and the chicken stock. Stir to combine and bring to a simmer.

4. Finish. Return the browned chicken to the pot, nestling into the sauce. Cover and simmer on low for 30 to 40 minutes until the chicken is completely tender and cooked through. The sauce will thicken and reduce. Taste and adjust seasoning — add more lemon if you want more brightness.

Serve over: Steamed rice or couscous. The sauce soaks into the grains and the result is one of the great one-pot dinners in African cooking. Fried plantains alongside are extraordinary.

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