There are different types of chocolate to choose from. Many muffins will call for cocoa powder instead of dark chocolate, but I wanted to make a muffin with melted 70 % dark chocolate. For these muffins, we are not using chocolate chips either. These muffins are made with Ocoa, a 70 % dark chocolate by Cacao Barry. Ocoa is available at IGA grocery stores in Quebec, as well as many restaurant supply stores in smaller 1-kilo resealable bags. You can also order Cacao Barry products online via the Vanilla Food Company website. They ship across Canada and to the United States!