Borshch is served hot or warm and, traditionally, it is served with sour cream. That might sound scary to some, but it is actually all right, and quite tasty. What you do is you add a spoonful of sour cream into each bowl as you serve it, telling your guests to mix it in before they start eating. Or, if you want to let them try it with and without sour cream, you can put a jar of sour cream on the table and have each person add it for themselves.