Add all the vegetables together in a large bowl, stir to mix.
Dissolve sugar in vinegar. Add salt and pepper to taste.
Mix vegetables and dressing together. Refrigerate and allow to marinate for at least 2 hours.
Stir to recoat all the vegetables. Remove salad to a serving bowl with a slotted spoon; reserve the dressing to use to refresh salad or for serving on the side.
Recipe by Cindy's Recipes and Writings at https://www.cindysrecipesandwritings.com/pa-dutch-pepper-cabbage-for-sundaysupper/