Crisp on the outside with savoury, sweet & spicy filling inside, the Biscuit Rotti is a popular poori like snack in Mangalore generally served during tea time.
To prepare the filling, heat the oil or ghee in a pan and add the mustard seeds. When they stop spluttering add the urad dal and reduce the heat. When the dal turns a golden brown add the hing and curry leaves, chilli powder, salt & sugar and mix for 3-4 seconds.
Stir in the coconut and roast for a few seconds and then the semolina and roast it too.
Remember to maintain the heat of the oil on a medium high. If the temperature is not accurate it could lead to soft or chewy biscuit rottis. When fried at the correct temperature biscuit rottis are hard and crisp on the outside.