Start with the onions — they take the longest and they are the whole point. Pour the olive oil into a heavy pan over medium heat, add all the sliced onion with a pinch of salt, and leave them to colour slowly for about 20 minutes, stirring every few minutes. They should go from translucent to golden to a deep chestnut brown with crisped edges. Take them to the edge of what looks right: just past golden, just before the smell turns sharp. Pull them off heat a shade early — they keep cooking in the pan. Scoop out half and set aside for the top. 从洋葱开始——最费时间，也是这道菜的灵魂。中火，橄榄油入厚底锅，下全部洋葱片，撒一撮盐，不急，慢慢上色，约20分钟，中间搅几次。从透明到金黄，再到深栗色、边缘微脆。颜色要走到"刚好过了黄金点"但"还没变苦"的那一步——闻到焦香而不是焦糊，就离火。早一点比晚一点好，锅还是热的。舀出一半备用，铺在成品上面。

Rinse the lentils and add them to the pan with the remaining onions. Cover with around 400 ml of water and bring to a boil, then reduce to a steady simmer. Cook uncovered for 10 minutes — the lentils should be almost done but still have a little bite. The reason they go in before the rice is simply time: rice cooks faster, and if you add them together, by the time the rice is right the lentils are mush. 扁豆冲洗干净，倒入留着洋葱的锅里。加约400毫升水，大火烧开，转小火，不盖锅盖，煮10分钟——扁豆应该快熟透但还带一点咬劲。先放扁豆是因为它需要更长时间：若和米同时下锅，米熟了扁豆也烂了。

Stir in the cumin and allspice, taste for salt, then add the rinsed rice. The water level should sit about 1 cm above the surface of the lentils and rice combined — add a splash more if needed, but don't drown it. Bring back to a gentle boil, then clamp on a lid, drop the heat to its lowest, and leave for 15 minutes without lifting the lid. Then take it off the heat entirely and let it steam, still lidded, for another 5 minutes. 加孜然和多香果粉，尝盐，再下冲洗好的米。水面应高出扁豆和米约1厘米——不够就加一点，但不要太多。重新烧开，盖上锅盖，调至最小火，15分钟，不要掀盖。然后关火，继续焖5分钟。

Pile the reserved caramelised onions on top. Serve with a spoonful of cold yoghurt or labneh alongside, and a wedge of lemon to squeeze over everything at the table. The cold against the warm, the sour against the sweet onion — that contrast is the whole meal. 把预留的焦洋葱铺在饭上。旁边放一勺冰凉的酸奶或拉布内，再来一瓣柠檬，上桌后自己挤。冷与热，酸与甜——这个对比就是整道菜的灵魂。