Creamy Apple Crumb Pie

Directions

1. Preheat oven to 400°. On a lightly floured surface, roll dough to a 1/8-in.-thick circle; transfer to a 9-in. deep-dish pie plate or cast-iron skillet. Trim crust to 1/2 in. beyond rim of plate; flute edge.
2. In a large bowl, combine sugar, cornstarch, cinnamon and allspice. Fold in the apples. Combine sour cream and vanilla; stir into apple mixture. Spoon into crust.
3. For topping, combine flour, brown sugar and cinnamon in a bowl; cut in butter until mixture resembles coarse crumbs. Sprinkle over filling.
4. Bake for 25 minutes. Reduce oven setting to 350°; bake until filling is bubbly and topping is golden, 25-30 minutes. Cool on a wire rack. Refrigerate leftovers.