In a large bowl, toss together the broccoli, red onion, raisins, sunflower seeds and bacon. Mix together the mayonnaise, vinegar and sugar; stir well and ... well for several days.
Completely chop broccoli to bite size. Add onion slices. Crumble in bacon and add sunflower seeds and raisins. For dressing mix mayonnaise, sugar and vinegar with wire whisk until sugar ... toss. Makes 12 servings.