Peel, wash and cut the potatoes into pieces. Heat the oil in a pan and fry the potatoes in it all around for about 15 minutes until golden brown. Season with salt and pepper. Remove from the pan and set aside. In the meantime dice the bacon finely. Clean the mushrooms and wash if necessary. Halve the mushrooms.
Add bacon to the frying fat and fry until crispy. Add mushrooms and fry for about 5 minutes. Season with salt and pepper. Add the potatoes and warm them up again. Add crème fraiche, except for something to garnish, and stir in. Bring to the boil briefly and arrange on plates. Serve each plate with a dash of crème fraiche and garnish with chives as desired