First and foremost, Maggie Stiefvater's November Cakes from The Scorpio Races:
Don't they look AMAZING? I want them like now. You can find the recipe here, on Maggie's photostream. She came up with the recipe herself. :)
Next, if you love Harry Potter, these might make you drool, Sugar Bean Bakers has made Apple Pie Cupcakes with Browned Butter Icing:
It'll just feel like Christmas at Hogwarts if you make these! The recipe can be found here. There's also a recipe for pumpkin juice if you're feeling especially inspired.
Now if you're having a party and wanted to make a subtle reference to a favorite book (or it's just Halloween...) you could make this punch, which I realize is NOT baking, but it just so reminded me of Unwind by Neal Shusterman's cover!
This is from Real Simple, and I doubt it was their intention, but just look!
And finally, Turkish Delight, as mentioned in The Lion, the Witch, and the Wardrobe! This is a classic recipe, but I've never really thought to look it up. It looks interesting! Like a pink lemon square, and I love lemon squares. So I'd eat it. :)
This was featured on The Geeky Chef (And you should really go visit. She has a recipe for Lembas Bread like in Lord of the Rings, which I almost put on here.) :)