Khattu Athanu, also known as Mango Pickle, is a traditional Indian condiment made with raw green mangoes, spices, and oil. The raw mangoes are cut into small pieces and mixed with a blend of aromatic spices like mustard seeds, fenugreek seeds, turmeric, red chili powder, and salt. The mixture is then soaked in oil, allowing the flavors to infuse and the mangoes to soften. Khattu Athanu is known for its tangy and spicy taste, making it a versatile accompaniment to various Indian meals like rice, roti, or dal.