For the smoked salmon sandwich with citrus cream, first mix crème fraîche with caper berries, juice and zest of a lime and whipped cream in a bowl, season with salt and pepper.
Spread each Kornspitz with 1 tablespoon of the cream. Cut the radishes into slices and place them on the Kornspitz with the Vogerlsalat. Finally, finish with the smoked salmon and serve the smoked salmon sandwich with citrus cream.