A quick and easy jumbleberry crumble perfect for summer gatherings, featuring a mix of fresh or frozen berries with a crunchy, buttery oat topping.
Keep the butter cold before mixing to ensure a crumbly topping. If topping browns too fast, tent with foil. Drain excess liquid from frozen berries to avoid watery filling. Lemon zest in topping adds brightness. Can substitute almond flour and dairy-free butter for gluten-free and vegan options.
Keywords: jumbleberry crumble, berry crumble, summer dessert, easy crumble recipe, mixed berry dessert, crumble topping, summer gatherings dessert