Add the dumplings to boiling salted water and cook, stirring, for 5 minutes after they pop up. Serve with fried onions or sour cream.
To freeze the dumplings, you need to take a baking sheet or a board. Put the baking parchment of the desired size on it and sprinkle it with flour. Arrange the dumplings, leaving a space between them, and put them in the freezer until completely cooled. Then put them in a bag and store them in the freezer.