Onion Rava Dosa is a popular South Indian dish made with semolina, rice flour, and onions. These crispy and savory crepes are perfect for breakfast or as a snack. The batter is made by mixing semolina, rice flour, and water, and then allowing it to ferment for a few hours. Finely chopped onions and spices are added to the batter before cooking the dosas on a hot griddle. Serve these delicious dosas with coconut chutney or sambar for a complete meal.