It's definitely a keeper. One of those really easy, quick to mix and get in the oven cakes. Seriously, the hardest and longest part is grating the courgettes. And not eating the chocolate chunks. If you can resist however you will be rewarded with a delight of a cake. An acute chocolate lake of a loaf oozing with moisture and hiding underground pockets of dark chocolate lava only hinted at by the rugged hunks of chocolate scattered on top. The courgettes lend themselves to the character of the cake, one which can be enjoyed by all.