Peel onion and garlic. Chop the onion finely, press the garlic through a garlic press. Cut the bacon into fine cubes and let it crisp in a pan without fat. Deglaze with stock and vinegar. Bring to the boil briefly, place in a bowl and let cool off. Drain beans and silver onions on a sieve. Clean, wash and cut iceberg lettuce into fine strips.
Wash the herbs and dab dry. Chop parsley, chop dill finely. Season bacon vinaigrette with salt and pepper. Stir in mustard, oil and yoghurt one after the other. Finally add herbs to the salad dressing. Just before serving, mix the beans, silver onions and iceberg lettuce with the bacon-yoghurt vinaigrette and arrange in a large bowl
With 12 people: