Heat oil in
medium pan. Add onion and stir-fry over low heat for 5 minutes or until
very soft. Add crushed garlic and cook for 1 minute. Stir in tomato, herbs
and sugar and cook over low heat for 10 minutes until reduced and
thickened. Add salt and pepper, to taste. Cool before use.
may be made up to 2 days in advance. Place sauce in an airtight container
and refrigerate until required. The sauce may also be frozen for up to 2
months. You may like to make a double batch and freeze the remaining sauce
for future use.