Thelma's Sandwich Spread

12 green peppers
12 red peppers
12 green tomatoes
2 large onions

Grind all together, drain, add the following:

scant pint of water
2 cups sugar
1 heaping Tbsp. flour
1 heaping Tbsp. celery seed
4 heaping Tbsp. prepared mustard

Boil mixture for 15 minutes, let cool and add quart of mayonaise and seal.