This Pineapple Ginger Crumble is a delightful dessert that combines the tropical flavors of pineapple with the warm spice of ginger. The sweet and tangy pineapple filling is topped with a crunchy crumble made with oats, brown sugar, and butter. The ginger adds a subtle heat and depth of flavor to the dish. Serve this crumble warm with a scoop of vanilla ice cream for a perfect balance of flavors and textures.