In British English, my friend informed me that my use of the word cookie was incorrect in referring to a baked item having no chocolate bits in it. Instead the appropriate term would have to be biscuit, as cookie always required some form of chocolate to be inside the biscuit.
Is this assertion correct?
The Oxford dictionary only explains the meaning in American English, not British English: "A sweet biscuit."
In case this is relevant, the object in question was a slightly sweet ginger-biscuit/cookie.