Ketchup - cooking recipe

Ingredients

1 bushel ripe tomatoes
7 bell peppers
10 onions
2 qt. vinegar
7 c. sugar
salt to taste
1/2 box pickling spice

Preparation

Cook tomatoes, peppers and onions together.
Strain.
Cook in mixture of vinegar, sugar, salt and pickling spice until thick. Water bath 10 minutes.