Not sure where this recipe originated. I found it in my recipe binder written on a scratch piece of paper. If you're a chocolate lover this is a very chocolatey recipe and it's a great way to sneak a vegetable in on your kids! The batter will be thick but refrigerating it overnight allows the zucchini to release a lot of its moisture. You can also make these into muffins, if you prefer. It makes a lot of muffins!