I've seen recipes that add too much sugar, or throw in spices that at best turn it into sweet ketchup and at worst a muddy jumble of flavors. To my mind this is a terrible crime against the naturally beautiful flavor of the tomato.
Need an easy canning project to try? Strawberry freezer jam is a simple and quick recipe to try for you first canning endeavor. I love how this recipe locks in the freshly picked flavor for ripe strawberries.