Thanks to Martha Sewart for this delicous recipe. The orignal can be found here.
Combine all crumble ingredients in a medium bowl and massage together with your fingers until butter is incorporated and mixture forms small clumps. Refrigerate until mixture is cold, at least 30 minutes and up to overnight.
Preheat oven to 350 degrees. Butter a 9 1/2-inch shallow round baking dish or pie plate. Combine all filling ingredients in another medium bowl. Transfer to baking dish and top with crumble. Bake until bubbling in center and crumble is browned, about 40 minutes. Let cool at least 20 minutes. Serve warm or at room temperature.