Quora user Denis M. suggested varenyky, or dumplings stuffed with mashed potatoes, cheese, sauerkraut, cabbage, or meat. 

They can be boiled or steamed, and typically come with toppings like fried salo (pig fat) and onions, along with smetana (sour cream).

Read more: http://www.businessinsider.com/the-best-thing-to-eat-in-every-country-2013-9?op=1#ixzz3Jv6M8dQV