Preheat oven to 475°.
Arrange apples in a single layer on a jelly-roll pan coated with cooking spray, and sprinkle with 1 tablespoon granulated sugar. Bake at 475° for 8 minutes, stirring well. Sprinkle with 1 tablespoon granulated sugar; bake an additional 7 minutes or until apples are slightly soft. Cool.
Reduce the oven temperature to 375°. Lightly spoon 1 1/2 cups flour into dry measuring cups; level with a knife. Combine with next 6 ingredients (flour through 1/8 teaspoon nutmeg). Combine buttermilk, egg substitute, oil, and rind, stirring well with a whisk. Add to flour mixture, stirring just until moist. Gently fold in apples and raisins. Spoon mixture into a 10-inch springform pan coated with cooking spray; place pan on a baking sheet.
Combine brown sugar, 3 tablespoons flour, 1/2 teaspoon cinnamon, and 1/4 teaspoon nutmeg; cut in margarine and corn syrup with a pastry blender or 2 knives until the mixture resembles coarse meal. Sprinkle evenly over batter in pan. Bake at 375° for 50 minutes or until a wooden pick inserted in center comes out clean. Cool on a wire rack.