This is the ULTIMATE fruity coffee cake - a light and tender cake layered with butter-and-cinnamon-coated peaches and a brown sugar cinnamon streusel. It's topped off with a crisp, mega-crumb topping, because no coffee cake is complete without big crumbs!
*Use ripe peaches for this recipe, but not super-soft, ultra-juicy peaches.
The bottom layer of the coffeecake may look underbaked when done, but it's not. Don't worry if you notice this!