Grate the potatoe. Heat a frying pan. Take 1/2 to 1/3 of the grated potatoe and put in the frying pan. Spread it out, it should be thin as a lace. Fry until it's golden brown, turn and fry the other side. Serve with unsweetened (or sweetened with a low cal brand as Sweet'n'low) lingonberry jam Could be eaten alone or with some meat.