Onion Uttapam is a variation of the classic Uttapam where finely chopped onions are added to the batter. The onions add a sweet and tangy flavor to the dish. To make Onion Uttapam, the batter is prepared by grinding soaked rice and lentils, and then fermented. The batter is spread on a hot griddle and topped with a generous amount of finely chopped onions. It is cooked until the onions turn golden brown and crispy. Onion Uttapam is usually served with coconut chutney and tomato chutney. It is a delicious and filling breakfast option that can also be enjoyed as a snack or lunch.