Paris Baguette or the Markets...

Walmart sells cupcakes

www.nogogo.com.cn is a great website for all kinds of foreign foods and ingredients here in SZ...they deliver...check it out.

Crap, they have sour cream and all sorts of stuff, prices always seem so high to me here tho, now I have to go to SZ to buy groceries. How many battery packs do you think I'd need for my scooter?

At a decent sized grocery store, you can probably find small boxes of cake mix. All you do is add an egg and bake it in the microwave for about a minute. I don't think that's what you're looking for, but if you don't need a lot, it's a decent substitute.