Minnesota Mix

Yield: 6 x half-litre jars (US pint) or 3 litre jars (US quart)

Course Main Course
Cuisine American
Keyword Tomatoes
Prep Time 1 hour
Cook Time 1 hour
Total Time 2 hours
Yield 6 half-litre jars (US pint) or 3 litre (US quart) jars
Calories 198 kcal


  • 3 kg tomatoes (12 cups / 6 1/2 lbs. Measured after peeling and quartering.)
  • 75 g green pepper (coarsely diced. 1/2 cup / 3 oz. Measured after prep. 1 medium-sized green pepper. )
  • 75 g onion (coarsely diced. 1/2 cup / 3 oz. Measured after prep. 1 medium-sized onion.)
  • 125 g celery (coarsely diced. 1 cup / 4 oz. Measured after prep. 1 large stalk. )
  • lemon juice (bottled. OR citric acid)
Metric - US Customary


  1. Peel and quarter the tomatoes.
  2. Wash, core, seed and chop the green pepper.
  3. Peel and chop the onion.
  4. Wash and chop the celery.
  5. Mix tomatoes, pepper, onion and celery together in large pot.
  6. Bring to a boil then lower to a simmer uncovered for 10 minutes.
  7. Meanwhile to each half-litre (pint jar) you will be using add either ¼ teaspoon citric acid or 1 tablespoon bottled lemon juice; OR if using litre (quart) jars, add either ½ teaspoon citric acid or 2 tablespoons bottled lemon juice.
  8. Pack tomato mixture hot into jars.
  9. Leave 2 cm (1/2 inch) headspace.
  10. Debubble, adjust headspace.
  11. Wipe jar rims.
  12. Put lids on.
  13. Process in a water bath or steam canner.
  14. Process 1/2 litre (US pint) jars for 40 minutes; process litre (US quart) jars for 50 minutes for altitudes up to 600 metres / 2000 feet. See table below.

Recipe Notes

Though it would be safe to season the mixture with dried seasonings such as salt, pepper, or dried herbs, it probably is best to leave it plain as the idea is for it to be a flexible base that you can take in a zillion directions with flavouring when you go to use it.

The reason bottled (as opposed to fresh) lemon juice is called for is that it provides a guaranteed acidity level for safety.