Gundruk Ko Achar is a traditional Nepali pickle made from fermented leafy greens. It is a tangy and spicy condiment that adds a burst of flavor to any meal. The pickling process gives the greens a unique sour taste and a slightly crunchy texture. This pickle is commonly served as a side dish with rice, lentils, and curry. It is also a popular accompaniment to momos (Nepali dumplings).