Instructions

  1. Soak sliced onions in cold water for 30 minutes.
  2. Remove onion slices from water; pat dry with paper toweling.
  3. In a large bowl, combine sour cream, vinegar, sugar, salt and pepper.
  4. Add cucumber and onion slices; gently mix together.
  5. Cover, and refrigerate for at least 2 hours before serving.