Roughly grate the vegetables (you can choose what tastes good here. However, it is advisable to use at least one flavor-intensive vegetable, such as celery, as otherwise the buffers will taste a little weak.) Grate coarsely with the food processor. Mix with the eggs and add enough breadcrumbs to make a malleable mass. Season well with salt, pepper and nutmeg and mix in the grains as desired. Tip: fry a sample buffer and then add seasoning if necessary.
Form small buffers from 2 tablespoons each and fry them slowly in clarified butter at a rather low temperature. Warning, the buffers turn brown quickly!
For the sauce, mix the sour cream with the herbs. The sauce stays cold.