Conversation

How does one go about having a pen name and getting paid for writing one does under it?

I want to write a cookbook, I don't want too much confusion between that and my identity as a composer. I don't mind people knowing I do both but I want people who search for me as a composer not to get clogged up with recipe stuff.

Thanks in advance. (I'm happy for you to point me at a useful how-to, esp. if UK-relevant, but experienced advice is even better.)