Heat the frozen seafood cocktail in a frying pan and simmer for 5 minutes. Add the oil and fry lightly.
Potatoes are cooked, drain the broth;
mash the potatoes in mashed potatoes, adding a little potato broth to the desired consistency (do not forget that we will add cream)
Finely chop the onion, fry until golden brown.
Mix everything in a blender. Put it in a saucepan, add cream and sour cream, add salt, bring to a boil - the soup is ready.
You can decorate with whole shrimp.
