In a small bowl, combine all-purpose flour and brown sugar.

Using a pastry blender or fork, cut the butter into the flour mixture until it resembles a coarse meal. Stir in coconut and pecans. Set aside.

Preheat oven to 325°

Coat a 12-cup Bundt cake pan with non-stick cooking spray. Sprinkle 1 tablespoon granulated sugar on the inside of bundt pan. Set aside.

In a small bowl, combine unsweetened cocoa powder and german chocolate. Add the boiling water and stir until chocolate melts. Set aside.

In a large bowl, combine the granulated sugar and butter using an electric mixer at medium speed. Blend for 5 minutes, until well blended and creamy,

Add the vanilla and egg whites, 1 at a time, to the butter mixture, mixing well after each addition.

In a large bowl, using a hand whisk, combine the flour, baking powder, baking soda, and salt.

With the electric mixer at low speed, add flour mixture to the sugar mixture alternately with the buttermilk, beginning and ending with flour mixture.

Stir the melted chocolate mixture into the cake batter.

Spoon half of batter into the prepared bundt pan and top with coconut-pecan filling.

Spoon the remaining batter over streusel and smooth the top of the cake batter with the back of a spoon, being sure to cover the streusel mixture.

Bake at 325° for 1 hour or until a wooden pick inserted in center comes out clean.

Cool cake in pan on a wire rack 10 minutes. Remove the cake from the pan and cool completely.

Combine powdered sugar and melted butter in a small bowl. Add the fat-free milk and stir with a whisk until smooth.

Drizzle glaze over top of cake.