Cut the tomatoes and onions into walnut size pieces and put in a pan. Add 2 1/2 cups sugar and 1 cup vinegar. Heat, stirring until sugar is dissolved. Bring to boil, and simmer 5 minutes.
In a separate bowl, mix the remaining sugar, vinegar, salt, spices, and flour.
Combine flour mixture with tomato mixture, and stir over medium heat until thickened and smooth (about 10 minutes).
Allow to cool, ladle into jars, and seal. Refrigerate until required.
By Lorraine from Perth, Western Australia
Wild's Ezy-Sauce is a popular ingredient to use when making tomato relish. This page has information about how to make tomato relish using Wild's Ezy-Sauce.
A great way to use up tomatoes that haven't ripened when the growing season is over is to preserve them in a relish. This is a page about canning green tomato relish.