Sweet Omelet Sponge

What does this photo look like? A sponge cake? A soufflé? A giant pancake? This traditional Slovenian dish is called Pohorska omleta--in English, Pohorje omelet. It is a sweet egg-based dish from Pohorje, a mountainous area in the northeastern part of the country. I had seen photos and recipes on a few of the Slovenian government's tourist websites that proudly feature traditional national dishes. Not much to this one, I thought. Just a sweet omelet that is lightened with beaten egg whites. I did wonder about one odd touch: a little flour added to the omelet batter. It wasn't until last month that my interest in the Porhorje omelet was piqued by the Professor, a Facebook friend in Slovenia. (He's an American who teaches translation at the University of Ljubljana.) He posted a photo and a recipe, and then asked his American friends to weigh in: What would you call this dish in English? The usual translation is "folded omelet" (aren't they all?) or ...