Mix small bottle of vinegar with 1 cup sugar, stir until all sugar is dissolve.
Combine apple cider vinegar with 1/2 cup sugar, stir until all sugar is dissolve.
Cut cabbage into large hunks and separate leaves a bit, put in white vinegar mixture.
Slice onions and put in apple cider mixture
Let both soak overnight, the next day drain well but do not wash. Put cabbage in food processor for a rough chop and do the same thing with the onions.
(Do not chop at the same time unless you want cabbage to have a red tint)
Put all in a colander to drain some more.
Place in bowl mix mayonnaise, celery seed, celery salt, and pepper together...add more or less mayo depending on your taste.