Khoresh Kari (خورش کاری) — Persian Curry Chicken Stew with Walnuts

• 0.25 tspSaffron threads (finely crushed)
• 3 tbspHot water (about 80–90°C / 175–195°F)
• 300 gYellow onions (thinly sliced)
• 60 mlVegetable oil (divided)
• 800 gChicken thighs (bone-in, skinless (about 4 pieces))
• 2 tspFine sea salt (divided)
• 1 tspBlack pepper (freshly ground)
• 1 tspGround turmeric
• 2 tspCurry powder (Persian-style mild curry blend preferred)
• 2 tbspTomato paste
• 250 gCelery stalks (cut into 2 cm pieces (about 3–4 stalks))
• 200 gButton mushrooms (halved or quartered)
• 150 gWalnuts (finely ground to a paste-like meal)
• 600 mlChicken stock (low-sodium)
• 30 mlLemon juice (fresh (2 tbsp), plus more to taste)
• 1 tspGranulated sugar (optional, to balance acidity)

Instructions

1. 1

   Make the saffron infusion: crush saffron threads to a powder, then stir with 3 tbsp hot water (80–90°C / 175–195°F). Cover and steep 15 minutes. This controlled bloom extracts color and aroma without boiling, which can dull saffron’s fragrance.

2. 2

   Fry the onions: heat 45 ml vegetable oil in a heavy pot over medium heat. Add sliced onions and cook 18–25 minutes, stirring often, until deeply golden and crisp-edged. Reduce heat if they darken too fast. Transfer onions to a plate, leaving as much oil as possible in the pot.

3. 3

   Season and brown the chicken: pat thighs dry, then season with 1 1/2 tsp salt, black pepper, turmeric, and 1 tsp curry powder. Increase heat to medium-high and brown chicken 4–5 minutes per side. Browning builds depth and prevents the stew from tasting flat.

4. 4

   Toast tomato paste and spices: lower heat to medium. Add tomato paste and the remaining 1 tsp curry powder to the pot and cook 2 minutes, stirring constantly, until the paste darkens slightly and smells sweet. This step removes raw tomato flavor and rounds the curry notes.

5. 5

   Build the base with celery and stock: add celery pieces and stir 2 minutes to coat. Pour in chicken stock and scrape the bottom to release browned bits. Return fried onions to the pot. Bring to a gentle simmer, cover, and cook 30 minutes on low, maintaining small bubbles.

6. 6

   Add mushrooms and walnut thickener: stir in mushrooms. In a bowl, whisk ground walnuts with 120 ml of hot stew liquid until smooth, then pour back into the pot while stirring. Cover and simmer 20 minutes on low, stirring every 5 minutes so the nuts do not stick.

7. 7

   Finish with saffron and citrus: stir in the saffron infusion, then simmer uncovered 8–10 minutes to thicken to a velvety sauce. Add lemon juice and the remaining 1/2 tsp salt (as needed). If the lemon tastes sharp, add 1 tsp sugar and simmer 1 minute.

8. 8

   Rest and serve: turn off heat, cover, and rest 10 minutes so the walnut sauce fully emulsifies. Taste again for lemon and salt. Serve hot with steamed rice, spooning extra sauce over the chicken. The stew should be glossy, aromatic, and gently curry-forward.