Wash the potatoes thoroughly and boil in water for about 20 minutes
Clean the mushrooms, wash briefly and drain well. Peel onion and garlic and chop finely. Wash parsley and chop finely, except for a little bit for garnishing.
Drain the potatoes and quench. Peel. Let the potatoes cool down a little, cut in half or quarter them
Heat 2 tablespoons of oil in a large frying pan. Fry the potatoes until golden brown, turning them over. Season with salt and pepper and remove
Heat 1-2 tablespoons of oil in a frying pan. Sauté garlic and onion in it. Add the mushrooms and fry for about 6-8 minutes, turning occasionally. Season. Fold in potatoes and parsley. Add crème fraîche and garnish with the rest of the parsley
Drink: cold beer