Wash and scrub the sweet potatoes.
Grate the potatoes and the onion and place both in a bowl.
Whisk in the eggs and season with salt and pepper
Heat some oil in a frying pan.
Add some generous spoons of sweet potato mix and flatten them with the backside of the spoon.
Let them fry on medium heat and be very careful when you flip them. Fry until golden and firm on each side.