Summary: Crisp, cool nights are upon us. It’s time to showcase some of fall’s best desserts. This super-easy crumble (some might call a berry crisp) takes just minutes to assemble and is perfect for cooking with kids.  Instead of the traditional oatmeal, this one uses granola. Choose one with nuts for a fabulous topping! I reduce the brown sugar to 1/8th cup – it’s still plenty sweet.