Many commercial chocolate chips include dairy ingredients like whey, milk fat or milk solids. However, there are a growing number of vegan or dairy-free chocolate chip brands as well as “accidentally” vegan (i.e. they’re not specifically branded vegan, but happen to be so) brands available. A few popular vegan chocolate chip brands include Enjoy Life, Trader Joe’s, Guittard, and Sunspire dairy-free chips. I found my non-dairy Ghiradelli chocolate chunks at a restaurant supply store and would highly recommend them if you can find them! For a complete list, check this article out.