Tomato Ketchup - cooking recipe

Ingredients

1 gal. tomato juice
sugar
spice
ground onions
salt

Preparation

Take tomato juice.
Let stand in warm place 4 or 5 days until it really sours.
Skim off top and part of water from top.
Use remaining juice and add sugar and spice to taste, 1 onion (ground real fine) and salt.
No vinegar is used.
Boil slowly until thick. Pour in pint jars and turn upside down 24 hours to seal.