Mr. Ping: The secret ingredient is... nothing! 

Po: Huh? 

Mr. Ping: You heard me. Nothing! There is no secret ingredient. 

Po: Wait, wait... it's just plain old noodle soup? You don't add some kind of special sauce or something? 

Mr. Ping: Don't have to. To make something special you just have to believe it's special.

[Po looks at the scroll again, and sees his reflection in it]

Po: There is no secret ingredient...

~ Kung Fu Panda