At what point does a recipe become your own?
So..you're making a recipe from a book (or a website, etc) you've made a thousand times, only, when you make it (every time you make it), you substitute some of this for some of that, and you leave out something else entirely. Then, you think that one ingredient is better chopped up than whole, and you cook it at a higher temp for a longer time, etc...you get the idea.
I have more than a few recipes like that and my BF says that they're now "my" recipes, but I say that it's still the book's, and I just made some changes. I have plenty of recipes that I created from scratch, and I don't think the aforementioned ones count.
What do you guys think? At what point does it go from being the book's recipe, to your own original recipe? Does it ever?