Peel the cucumber and cut into small cubes. Drain the mustard gherkins and cut them a little smaller. Peel and finely chop the onion. Steam prepared ingredients in hot fat for about 5 minutes. Deglaze with broth, simmer for about 5 minutes.
Puree everything with the chopping stick. Refine with crème fraîche. Wash, chop and stir in the herbs. Flavour with salt and pepper. Serve garnished with dill and lemon