Sterilize the jars. Put them in the oven for 20 minutes, the temperature inside should be 100-110 °C. Then turn off the oven, let the jars cool inside for a few minutes.

Cut the cucumber into cubes.

Finely chop the onion. Grate the carrots on a coarse grater.

Pour boiling water over the pearl barley for 20 minutes.

Cook the cereal over low heat until half cooked for 20 minutes.

In a saucepan, mix chopped vegetables, pearl barley, tomato paste. Add sugar and salt.

Place on the stove. Pour in water and simmer for 15 minutes.

Add vegetable oil and simmer for another 5 minutes. A couple of minutes before the end, add vinegar.

Place the boiling rassolnik into a jar and screw it on.