Mix vinegar and oil. Season to taste with salt, pepper and sugar. Wash the chives, dab dry and cut into small rolls, except for a few stalks for garnishing. Add chives and caraway seeds to the vinaigrette and mix. Peel the radish and cut into wafer-thin slices. Clean, wash and halve the radishes.
Mix the radish and radishes with the vinaigrette. Cut the sausages in half and cut the ends 3 times each. Fry the sausage crowns on a hot grill for 5-8 minutes all around. Arrange sausage crowns and salad. Garnish with chives. Serve with sweet mustard and farmhouse bread