In a large bowl, whisk together the 60g of plain whole milk yogurt, 30ml of olive oil, 15ml of fresh lemon juice, 4g of minced garlic, 3g of cumin, 3g of paprika, 2g of coriander, 2g of turmeric, 1g of cinnamon, 1g of black pepper, and 4g of salt until fully combined and uniform. The yogurt-based marinade is the specifically Lebanese approach to shawarma — the yogurt's lactic acid gently tenderises the chicken's surface during marinating while simultaneously providing a protein-rich coating that adheres the spices to the meat and caramelises into the characteristic charred crust during high-heat cooking. The seven-spice combination produces the composite aromatic that identifies Lebanese shawarma specifically: cumin for earthy warmth, paprika for colour and mild sweetness, coriander for citrusy floral depth, turmeric for the golden colour and slightly bitter earthiness, cinnamon for the warm, sweet aromatic background that is distinctly Middle Eastern rather than Mediterranean or South Asian. Add the 600g of chicken thigh strips and use your hands to massage the marinade thoroughly into every surface — working it into all the cut surfaces of the strips where it adheres most effectively. Allow to marinate for a minimum of 15 minutes at room temperature while the rice and tahini sauce are prepared. For the deepest flavour penetration, marinate for 2–4 hours or overnight refrigerated — bringing the chicken to room temperature for 10 minutes before cooking regardless of marination length.

In a medium saucepan, heat the 15ml of olive oil over medium heat. Add the rinsed 280g of basmati rice to the hot olive oil and stir for 1 minute — coating each grain in the warm oil and allowing the rice's exterior starch to toast very slightly in the oil. This brief toasting step is the technique decision that makes the turmeric rice specifically more flavourful than simply cooking rice in turmeric water: the oil-coated grains absorb the aromatic compounds of the turmeric more completely during subsequent cooking, producing a more evenly golden and more aromatic rice. Add the 420ml of water, 3g of turmeric, and 3g of salt. The turmeric dissolves into the water and turns the cooking liquid a vivid golden-yellow — during the 15-minute simmer the rice absorbs this coloured, lightly spiced water completely, producing the characteristic golden basmati with a faint, warm turmeric aroma that characterises Lebanese rice dishes. Bring to a full boil, then reduce immediately to the lowest possible heat, cover tightly, and cook for 15 minutes without lifting the lid. Remove from heat and allow to stand covered for 5 minutes. Uncover and fluff gently with a fork — the grains should be separate and fluffy with an even, deep golden colour throughout.

Place the 80g of tahini paste in a medium bowl. Add the 30ml of fresh lemon juice and 2g of minced garlic and begin whisking. The tahini will immediately seize — this is the expected and characteristic behaviour of pure sesame paste when it first contacts an acidic liquid. The sesame proteins contract rapidly, causing the tahini to thicken dramatically and sometimes appear to curdle or become grainy. Continue whisking firmly — the seized texture is temporary. Begin adding the 60ml of cold water in small increments while whisking continuously. Cold water is specified because the temperature differential helps the seized proteins relax and re-emulsify more smoothly than warm or hot water. With each small addition of cold water and continuous whisking, the seized tahini progressively loosens and transforms — from a stiff, grainy mass to a pale, smooth, uniformly creamy sauce. By the time all 60ml of cold water has been incorporated the sauce should have the consistency of pourable cream — thick enough to drizzle in a controlled stream rather than running freely, smooth enough to show no grain or lumpiness. Season with the 2g of salt and taste — the sauce should be simultaneously rich from the sesame, bright from the lemon, and gently sharp from the garlic. Adjust with additional lemon juice for brightness or additional water for a looser consistency.

Heat the 20ml of olive oil in a large cast iron skillet or heavy-bottomed pan over medium-high heat until shimmering. Remove the chicken strips from the marinade and allow the thick excess to drip off briefly — any very thick clumps of yogurt marinade will steam rather than char and should be shaken off. Add the chicken in a single layer with space between pieces — work in two batches if the skillet cannot accommodate all 600g without crowding. Leave completely undisturbed for 4–5 minutes. The yogurt's milk sugars and the paprika and cumin's heat-reactive compounds caramelise simultaneously against the hot cast iron surface, developing the deeply browned, slightly charred crust that is the signature of authentic shawarma's char-cooked character. The undisturbed contact is essential — any movement during this period breaks the developing crust and prevents the charring that makes shawarma specifically distinctive from any other spiced chicken preparation. After 4–5 minutes the chicken strips should be releasing naturally from the pan surface with deeply browned and slightly blackened patches visible on the bottom. Flip and cook for a further 3–4 minutes on the second side until cooked through to 75°C internal temperature throughout. Remove from heat.

Divide the turmeric rice among four wide bowls. Top each bowl with equal portions of the shawarma chicken strips, arranging them so the charred surfaces are visible. Distribute the bowl toppings in distinct sections around the chicken: 50g of diced cucumber, 50g of halved cherry tomatoes, 20g of thinly sliced red onion, and 10g of chopped flat-leaf parsley per bowl. The vegetables are served raw — their fresh crunch and clean, bright flavour characters provide the specific contrast that the warm, spiced, charred chicken requires. Drizzle the tahini sauce generously over each bowl — extending it across both the chicken and the rice so every component is reached. Serve lemon wedges alongside each bowl for squeezing at the table. Add the optional garnishes if using: 40g of pickled turnips per bowl, a pinch of sumac sprinkled over the entire surface, and 30g of crumbled feta cheese. The pickled turnips — vivid magenta from their beet-pickling liquid — provide the sharp, vinegary acidity that is a hallmark of Lebanese street food accompaniments and which cuts through the tahini's richness and the chicken's spiced warmth with a specific, irreplaceable character. The sumac's tart, fruity acid adds its specific top note of citrus-adjacent sourness that neither lemon juice nor the pickles provide exactly. The feta adds a salty, creamy counterpoint to the tahini's nuttiness.