Dưa hành (pickled shallots)
In northern Vietnam the saying goes that fatty pork, pickled shallots and red couplets make Tết, and dưa hành is that pickled shallot. It is not the same thing as southern củ kiệu: kiệu are slim scallion bulbs pickled sweet and mild, while dưa hành uses round purple shallots (hành tím) that sit in a salty brine for a few days, turning faintly sour, crunchy and pleasantly pungent. Their bite cuts through sticky bánh chưng, pork in aspic and pressed pork rolls, which is exactly why every northern family makes a jar. Chef's tip: soak the unpeeled shallots in warm water first; the skins then slip off in seconds and your eyes stay dry.
























