How to cook
Clean the mushrooms and soak them for 30 min. in cold water. Wash them thoroughly and cut them into slices, then boil them in 2 1/2 cups (600 mL) of salted water. Take them out using a slotted spoon.
Once the sauce comes to a boil, add the mushrooms, boil another 5 - 10 min, sprinkle with black pepper and serve.