Sweet and Sour Onions

Method

1. Prepare the onions by peeling them (use small whole onions or sliced, as preferred).
2. Place the onions into a jar, filling it until full.
3. Add one part vinegar and two parts water to the jar, ensuring the onions are submerged.
4. Add 1 teaspoon of salt and 1 tablespoon of sugar.
5. Add black pepper to taste.
6. Close the jar tightly and shake well to mix all ingredients.
7. Place the jar in a large pot and fill with water until the jar is nearly covered (about 2/3 of the jar height). Bring to a boil and cook for 10 minutes.
8. Remove the jar from the water and turn it upside down to create a vacuum seal. Let it cool completely before storing.