Funšterc is a Slovenian omelet prepared with flour, water, eggs, and salt. The ingredients are mixed into a smooth batter which is then poured into a frying pan or a baking tin and baked in lard or oil. In the past, this omelet was especially popular among coal miners and their families.
The other name of the dish, coalminer's sun, refers to the yellow color of the dish that resembles the Sun, which the miners couldn't see while they were working underground. The omelet needed to be round and thick while remaining puffy and tender at the same time, which is the reason why some housewives used to add egg white foam into the batter.