Momoya Pickled Zasai (Mustard Plant Stem)

Zasai (or zha cai) is the pickled stem of mustard plants. This preserved vegetable packs a powerful combo punch of tanginess and umami. Zasai has a crunchy texture similar to pickles/cucumber. This is often used as a flavorful topping for noodles, rice, or congee, but it is also used to add flavor in stir-fries and more.