In a large bowl, combine the pancake mix, cinnamon and ginger. Set aside 1/3 cup for topping. In another bowl, combine milk and molasses. Stir into dry ingredients just until moistened.
Transfer to a greased 9-in. pie plate. In a small bowl, combine sugar and reserved pancake mix mixture. Cut in butter until mixture resembles coarse crumbs. Sprinkle over batter. Bake at 350° for 25-30 minutes or until a toothpick inserted in the center comes out clean. Serve warm.