Peel, wash and roughly grate the potatoes. Wash the chives and cut into pieces. Stir chives, egg and flour into the potato mixture. Season with salt and a little pepper.
Heat the clarified butter in portions in a coated pan. Shape the potato mixture into 8-12 buffers and fry for 3-4 minutes on each side until crispy brown.
Serve the pancakes with creme fraiche and the smoked salmon.