Canned Tomato and Onion Salad for Winter
Quick, easy canned vegetables for winter! This tomato and onion salad can be served as a side dish, or used as a component in other dishes—for the sauté base of a soup, as a pasta sauce, and so on.
Cooking method
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Step 1:
How do you make canned tomatoes with onion for winter? Gather all the ingredients. Elongated tomatoes are best—they hold up beautifully for canning. I used a regular yellow onion, but red, white, or even shallots work too.
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Step 2:
Wash the tomatoes, remove the stem ends, and cut them into wedges.
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Step 3:
Peel the onion and cut it into thin half-moons.
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Step 4:
Put the tomatoes and onion in a separate bowl and salt them.
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Step 5:
Add the vegetable oil and stir. Any vegetable oil works—even unrefined and aromatic; pick what you like. Pour in the vinegar. This recipe uses 6–9% vinegar; if you have vinegar essence, dilute it with water at a 1:8 ratio.
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Step 6:
Sterilize the jars however is convenient. I just put the jars with a little water in the microwave for 5–7 minutes, but you can also sterilize them in the oven at 210°F (100°C) for about 30 minutes, hold them over steam, or pour boiling water into them. Boiling the lids for a few minutes is enough.
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Step 7:
Fill the jars with the tomatoes and onion.
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Step 8:
Line the bottom of a pot with a towel folded a few times.
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Step 9:
Set the jar of salad in the pot. Fill with water up to the shoulders, bring to a boil, and pasteurize over low heat for 1 hour, topping up the water as it evaporates. Seal the jars tightly with lids. Store this preserve at normal room temperature.
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Step 10:
The zesty tomato-and-onion preserve is ready—it'll come to your rescue many times over the winter! Enjoy!
- Keep in mind that ingredients like salt, sugar, vinegar, and vinegar substitutes are used in winter preserves not just for flavor but, above all, as preservatives. So never cut back on the salt or sugar, and don't swap in a weaker vinegar than the recipe calls for—otherwise it won't do its preserving job and the preserve will spoil.
- Choose tomatoes that are juicy but firm—soft ones don't hold their shape and will turn to mush as you cut and cook them, ruining the look of the dish.
Caloric content of the products possible in the composition of the dish
- Tomatoes - 23 kcal/100g
- Wine vinegar (3%) - 9 kcal/100g
- Vinegar 9% - 11 kcal/100g
- Balsamic vinegar - 88 kcal/100g
- Apple vinegar - 14 kcal/100g
- Vinegar - 11 kcal/100g
- Vegetable oil - 873 kcal/100g
- Salt - 0 kcal/100g
- Onion - 41 kcal/100g
