Ah, the age old question. What is the difference between a muffin and a cupcake? Not a whole heck of a lot. Especially with these Chocolate Chip Muffins from Joy of Baking I made a few weeks ago. I think the only thing keeping them from cupcake territory was the lack of frosting or icing. At least that is what I told myself as I ate one for breakfast 3 days in a row. For some reason mine look nothing like the ones pictured on the Joy of Baking site, but they were mighty tasty non-the-less.