I had made some zucchini fries using panko and, being a very messy baker, hadn???t cleaned up fully from the night before. When I was creating this recipe, I saw the panko crumbs, which are extremely crisp, and thought, ???Crisp for the crisp.??? Unlike traditional crumb toppings made from oats or flour, this one is extra-crunchy, in perfect contrast to the tender, classic summertime blueberry and peach mixture bubbling away beneath the surface. To enjoy the topping at its crunchiest, eat the crisp while still warm from the oven, but be careful when you serve it. The juices like to slop about.