Ah, the multipurpose alu tikki. Put it in chat and it turns into fabulous street food; put it in a roll and it turns into a veggie burger. For that matter, serve it with breakfast and call it a freaking hash brown! Just kidding.
Boil potatoes. Peel and mash. Add salt, red chilli powder, a tiny bit of cumin powder and a dash of chaat masala. Mix well and let cool. Make balls and squish into little cakes. Dust in flour. Meanwhile heat oil in a large flat pan, enough to shallow fry. Put the tikkis (potato cakes) onto hot oil. Don't try to flip it too soon; wait till the bottom has browned enough for you to easily flip. Fry the other side. Serve with a fabulous mint-coriander chutney!