chicken breast, washed and cut into shawarma-style strips (about 1 kg) • plain yogurt (about 480 ml) • vinegar (about 60 ml) • Salt, black pepper, cumin, chili powder, paprika, ginger, mixed spices, and cinnamon, to taste • tomatoes, diced • green bell peppers, chopped • hot chili pepper, chopped • colored bell peppers (such as red or yellow), chopped • large onion, sliced • oil (about 75 ml) • Chopped iceberg lettuce • Syrian flatbread (or pita bread)