How do you make potatoes cakes? please
Are you channeling your best self with this comment? (If you're not sure, check out our Code of Conduct.)
I'm not sure if you mean a sweet or a savory potato cake; it's usual here to use left-over boiled or mashed potatos, mixed with milk, egg, flour, salt and pepper into a thick batter, and fried on a hot griddle. They're a good accompaniment with lots of vegetable and meat dishes.