cannellini beans, rinsed and drained • kidney beans, rinsed and drained • garbanzo beans, rinsed and drained • Spanish onion, chopped fine (about 3/4 cup) soaked in water to take the edge off the onion • celery stalks, chopped fine (about 1 cup) • loosely packed, fresh, finely chopped flat-leaf parsley • fresh chopped rosemary • Dressing • apple cider vinegar • granulated sugar (more or less to taste) • olive oil • salt •