Manathakali Vathal (Without Salt) is prepared from black nightshade berries that are sun-dried to preserve their medicinal properties and slightly bitter taste. This traditional ingredient is popular in South Indian cuisine, often added to kuzhambu (gravies), rice dishes, and soups to lend a distinctive flavor. Known for their anti-inflammatory and digestive benefits, these berries are a staple in households for both their taste and health properties. When fried or soaked in tamarind, the bitterness is mellowed, making them a delightful addition to rich and spicy dishes.