Katharikai thokku is made from eggplants (brinjals) that are roasted, peeled, and ground into a smooth, earthy paste. The eggplant's natural mild flavor and creamy texture make it an excellent base for absorbing aromatic spices like cumin, coriander, and red chilies. The paste is cooked with mustard oil and salt until it reaches a thick, spreadable consistency. This thokku has a distinctive earthy taste and is popular in South Indian households.
Katharikai thokku is low in calories but rich in fiber, vitamins, and antioxidants. The fiber content supports digestive health and promotes regular bowel movements. Eggplant contains nasunin, an anthocyanin antioxidant found in the skin that supports brain health and protects cell membranes. The eggplant is rich in phenolic compounds that have anti-inflammatory properties. It also contains compounds that may help lower cholesterol and support heart health. The low calorie content makes it ideal for weight management.