Complex sentence: There is also one variation, called "alfajor de nieve", that instead of having a white or black chocolate coating, it has a "snow" coating consisting of a mixture of egg whites and sugar.
Split into simpler sentences: There is also one variation, called "Alfajor de nieve", that instead of having a white or black chocolate coating, it has a "snow" coating. The "snow" coating consists of a mixture of egg whites and sugar.