Wash and clean potatoes from any dust. Place the potatoes into big pot with water. Water should completely cover potatoes. Boil potatoes, until they are tender. When they are cooked and soft, place them on a plate and leave until they cool off.
Place the pan on the stove and add sunflower oil. Then cut the mushrooms into small pieces and transfer them into the pan. Add garlic, salt to taste and fry everything. Just before everything is ready, add full cream and stir for a bit.
Boil the gnocchi. Then drop them to the pot and let cook until they rise to the surface.
Use a slotted spoon or a strainer to remove the cooked gnocchi from the boiling water and transfer to a plate. Repeat with the remaining gnocchi batches. Pour creamy mushroom sauce over the gnocchi and grate cheese on top.