Dissolve soup paste in 500 ml of boiling water while stirring. Pour in the cream and wine, bring to the boil briefly, heat 3/4 of the crabs in the soup, season with salt + pepper + lemon juice, fold in the chopped dill.
Divide the soup on 4 plates, place 1 teaspoon creme fraiche on each, sprinkle with the remaining shrimps and decorate the dill stalks.