Semisweet chocolate is the standard for chocolate chips. Neither too sweet nor too dark, it appeals to everyone and complements most recipes. If you want something a little different, you either have to hunt around to find a bag of specialty chocolate chips or chop up a bar of chocolate into chunks to stir into your cookie dough. Dark chocolate lovers should keep an eye out for the new Extra Dark Chocolate Chips from Guittard the next time you find yourself in need of chocolate chips for baking. These chocolate chips have a much more intense chocolate flavor than semisweet chocolate chips, and come in a very convenient package.
The Extra Dark Chocolate Chips are 63% cacao. Guittard doesn’t give a cacao percentage on their semisweet chocolate chips, which I used for a comparison, but the dark chips are noticeably less sweet. They have a slight fruitiness and a slight bitterness to them when eaten plain, though neither element stands out really strongly once the chips have been baked into something, and are a nice change from semisweet chocolate chips. They’re especially good in double chocolate cookies, where you want to maximize the cocoa flavor.
These chips might be a bit hard to find in stores, but some specialty cooking/baking stores carry them and you can find them at some online retailers, as well.