Preparation:
1. Heat the oil in a large saucepan over medium heat.
2. Saut‚ sliced onion in the oil for 5 minutes, until onions are soft, but not brown.
3. Add water, tomato paste, corn syrup, cornstarch and salt and stir.
4. Bring mixture to a boil, then reduce heat and simmer for 45 minutes. Add vinegar. Continue to simmer for an additiona1 30 to 45 minutes or until most of the liquid has reduced and the sauce is thick. |
