Onions should be cut into half rings and fried until soft.
Cut the mushrooms into small slices and also fry until tender.
Shrimp can be taken ready.
I had a pound of freshly frozen shrimp. After defrosting and cooking in boiling salted water (literally 1 minute!) and there are only about 150 grams left to clean them.
For refueling, you need to take 2 tablespoons of thick cream, pepper well, squeeze out a little (about a teaspoon) of lemon juice and salt.
Season the cooled ingredients with the sauce and mix well.