Boil the potatoes until tender. Drain and peel them, then semi-crush them with a fork or potato masher. Restaurant Style Upma Recipe. For the filling, heat some butter in a pan and add about half a cup of apples cut into small cubes with a pinch of cinnamon powder. Karnataka Style Mandakki Usli To further tweak this chocolate dosa recipe, you will have to make the filling as well as the sauce. Cook it till it is soft and then add some salt and sugar as per requirement. Potato Masala For Dosa. Set a karhai, wok or pan, about 20 cm in diameter, over a medium heat. This filling can also be used for sandwiches,parathas, packed in as a side dish for lunchbox along with coconut rice,carrot rice,mint rice.. CHECKOUT MORE BREAKFAST RECIPES.