Grate potato and in a clean tea towel, squeeze out starch from potatoes. Put into a clean bowl and add onion, rosemary, egg and salt & pepper. Mix all together.
In a fry pan add oil on medium heat. Put 3 spoonfuls in pan and cook for 2-3 minutes, or until golden. Flip and cook other side. Drain on paper towel. Can add any type of accompaniment you want or just have them by them selves. Should make 8 fritters.
Notes
This recipe for two people, but you can add more potato for more people.