Wash and clean the beans. Cook the beans in boiling salted water for 10-12 minutes. Peel and finely dice shallots. Mix vinegar, mustard and 8 tablespoons bean water. Fold in the oil. Wash and halve the chilli pepper.
Remove the seeds, chop the pod finely. Add chilli to the marinade and season with salt, pepper and sugar.
Wash the savory, pluck the leaves. Drain the beans, mix with the marinade and fold in the savory. Serve marinated beans still lukewarm.