Core, peel and clean the vegetables as needed and only then weigh them.
Cut tomatoes into wedges, cucumbers into thin slices, peppers into thin strips, onions into half rings, garlic into thin slices.
Finely chop dill and parsley.
Put the vegetables and herbs in a large bowl.
Add sugar, salt and vegetable oil to the vegetables.
Dilute vinegar essence with water and add it to the vegetables as well.
Gently mix the vegetables with a wooden spoon and let them juice for about 1 hour.
Sterilize the lids of the preserving jars, for example in boiling water.
Add 1 bay leaf and 5 - 6 black peppercorns to each 500 ml preserving jar.
Divide the vegetables among the preserving jars up to the rim, pressing them lightly with the spoon as you fill them.
Pour the vegetables in the jars with the resulting vegetable juice.
Place the sterilized lids on the preserving jars, but do not seal them.
Line the bottom of a large cooking pot with a dish towel.
Place the preserving jars with the vegetables in the cooking pot on the dish towel side by side.
Pour enough water into the cooking pot so that the jars are not covered with the water by about 2 - 3 cm to the lid.
Bring the water in the saucepan with the preserving jars to a boil and simmer for about 20 - 25 minutes (for 500 ml sized preserving jars).
Carefully remove the hot preserving jars from the saucepan and close the lids tightly.
Place the preserving jars with the vegetable salad on the lids, cover them with a large bath towel or something similar, and allow them to cool to room temperature.
Turn the preserving jars with the salad "Donskoy" and store them in a cool and dark place.