Tomato and Onion Salad for Winter Canning
Fragrant oil-based appetizer - perfect with potatoes and meat! Tomato and onion salad for winter is tasty and wholesome - so good you’ll lick your fingers! A great source of vitamins and antioxidants. An ideal snack for any meal.
Updated : 04 March, 2026
Easy
More than 1 hour.
Ingredients
1.5 kilograms
Tomato
3
Onions
60 milliliters
Vegetable oil
1 teaspoon
Salt
3 tablespoon
Vinegar
Table
Table of volume measurements:
- teaspoon - 5 ml
- dessert spoon - 10 ml
- tablespoon - 20 ml
- glass - 200 ml
Preparation
Step 1
Prepare all the needed ingredients. Choose juicy but firm, elongated plum tomatoes. Soft tomatoes don’t hold their shape; when slicing and cooking they’ll turn into a shapeless mass and ruin the look of the dish. I used regular yellow onions, but you can use red onion, white onion, or even shallots.
Step 2
Wash the tomatoes thoroughly under running water, remove the stems, and cut into wedges. Peel the onion and slice into half-rings. Put the tomatoes and onion into a large bowl and salt them.
Step 3
Add vegetable oil and mix. The oil can be any kind, even unrefined and aromatic. Pour in the vinegar. This recipe uses 9% vinegar. If you have vinegar essence or a lower-percentage vinegar, calculate the needed amount accordingly.
Step 4
Sterilize the jars in any convenient way. I simply put jars with a little water in the microwave for 5-7 minutes. You can also sterilize them in the oven at 212°F (100°C) for about 30 minutes, steam them, or pour boiling water over them. Boil the lids for 5-7 minutes.
Step 5
Place a towel folded into several layers on the bottom of a pot. Fill the jars with the tomato-onion salad. Put the jars into the pot and add cold water (not boiling!) up to the “shoulders.” Bring to a boil, then pasteurize over low heat for about 1 hour. As the water evaporates, add more water, but only hot water. Seal the jars tightly with lids (or can them).
Step 6
The fragrant, tangy tomato-and-onion preserve is ready. Store it at normal room temperature. Enjoy!
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