If you’re using a tube pan, the topping has to be baked separately and put on cake after it’s baked (otherwise it’ll stick to the bottom of the pan). Spread the topping ingredients on a baking sheet and bake at 350 degrees Fahrenheit (180 degrees Celsius) for approximately 7–10 minutes or until golden. Set aside to cool. When cake is cooled and removed from pan, first drizzle glaze over cake and then add the topping. The glaze serves as glue. If desired, you can add another layer of glaze on top of crumbs.
To make this cake healthier and lower fat, use 1/3 cup oil and 1/3 cup applesauce instead of margarine. Use whole wheat pastry flour instead of white flour. Use cane (turbinado) sugar in place of the white sugar. Check cake after 35 minutes instead of 45 minutes.