1. In the bowl of the robot equipped with the Chopper, put the mushrooms and start at Speed 11 for 10 seconds. Set aside.
2. Replace the Chopper with the Mixer. Without washing the bowl, add the oil and butter, then start the robot at Speed 4 at 100 °C for 1 minute.
3. Add the flour and start the robot at Speed 4 at 100 °C for 2 minutes.
4. Add the salt, pepper, bouillon cube, water, and reserved mushrooms, then start at Speed 6 at 70 °C for 8 minutes (Sauce program for the old Companion).
5. Add the cream and start the robot at Speed 4 at 100 °C for 2 minutes.
6. Add a tablespoon of lemon juice and stir. Cook the pasta in a pot of salted boiling water and serve the pasta with the Parisian sauce garnished with Parmesan.