How are pastries organic?

I don't think I fully understand the meaning of an 'organic food.' I keep reading organic food is food grown the way "nature intended it" or with "no alteration to its natural way of growing." Well, nature doesn't grow cakes. I can understand the difference between an organic beef and .. an inorganic beef. But pies and cakes? What is the difference between organic pie and inorganic pie?? Both contain sugar, fat, and all that. What necessarily makes the ORGANIC pie more healthy? Or does it not? o_o