Nah, a proper one is meant to be able to be a to go sandwich. You simply can't do a yolk like that as a to go sandwich, way too messy. You'd only be able to make one like this if dining in or doing it yourself at home. I'm not disputing whether or not it is better tasting, but if it's not quick and easy handheld food for that always on the go commuter Jersey life, it's not a proper sandwich. A proper sandwich would be wrapped in paper and would be leaking yolk because it was squeezed into the sandwich wrap if it was cooked like that.