They are oval balls filled with ham, mushrooms, chicken or basically anything you have or like (so, I have been told) First you make something that looks like dough in the frying pan from oil and flower, then you mix in whatever ingridient you want to have, let it cool and shape oval balls (I know it sounds contradicting, but I don´t know any other way to explain it) that you roll in flower/breadcrums and then you deep fry them in a frying pan. They are usually eaten with a deep fried egg.

Qoute - Big Bang Theory intro