Material preparation: appropriate amount of Tricholoma, onion, flour, butter, whipped cream and white pepper.

1. Stir-fry the flour until it is slightly yellow. Add butter and stir well.

2. Add the onion to the hot butter in the pot and stir fry.

3. Add water, pour in milk and cook for 20 minutes.

4. Pour the cooked mushroom soup into the wall-breaking machine for wall-breaking filtration.

5. The filtered mushroom soup can be mixed with butter noodles.