Everything you say makes complete sense, and it sounds like you have a real handle on what's needed in order to make it financially viable. It would be amazing if your boss did come up with a solution for you. (oh and you are totally worth the money, your cookies are amazing)
If things don't go this way though, perhaps some of your previous ideas about running classes could be somewhere in the future for you, so it may be that you still work with cookies but are able to concentrate on design rather than mass production. I think that could be fantastic.
Thanks for the praise. I will hire you as our marketing executive
Giving classes is actually the second option we consider, and in my humble opinion the much more realistic. I only need to persuade my boss that we will go down that road, at least for a start. It will also require a lot less investment and reduce the risks considerably.