This is an extremely moist and light coffee cake. The apples and brown sugar give it a wonderful melt-in-your-mouth flavour and the crumble topping is amazing! It's also very easy to prepare. It is modified from an Emeril Lagasse recipe. If you like nuts, you can also add some chopped walnuts, almonds, or pecans to the topping. This is great served warm or at room temperature.