This is the 15636th most frequent German word.
woraus
"Woraus" means "out of what" or "from which."
In this sentence, "woraus" introduces a question asking for the material or ingredients of the cake.
Woraus besteht dieser Kuchen?
What is this cake made of?
Here, "woraus" starts a subordinate clause that explains the material composition of the dress.
Sie fragte mich, woraus das Kleid gemacht wurde.
She asked me what the dress was made of.
In this usage, "woraus" queries the basis or source of the conclusion.