Usually a tablespoon or two of fat is left in the pan, as it will give a little body and flavor to the sauce.

把肥油和汤汁从冰块上倒下去，大部分的肥油会凝结在冰块上。 同时有些冰会融化，跟汤汁混在一起掉进锅子里，大火滚一滚很快就能收汁聚味了。