Place a steaming basket into a wide pan, fill with water until it is just below the bottom of the basket, add the potatoes, season with salt, cover and cook over a medium heat for approx. 45 mins. until soft.
Pass the potatoes through a food mill into a bowl, allow to cool slightly. Add the flour, egg and salt.
On a lightly floured surface, shape the mixture into 4 rolls (each approx. 2 cm in diameter). Cut the rolls into pieces approx. 2 cm long. Using your thumb, roll them over the prongs of a fork to create a pattern. Place the gnocchi on a floured towel.
Cook the gnocchi
Cook the gnocchi in batches in gently simmering salted water for approx. 2 mins. until they float to the surface. Remove with a slotted spoon, drain, add the oil and keep warm. Set aside 100 ml of cooking water.
Heat the oil in a frying pan, fry the chanterelle for approx. 3 mins. Pour in the wine, reduce almost completely, add the reserved cooking water and cream, heat through, season. Stir in the gnocchi and heat gently. Sprinkle with the parmesan and chives.