Created on October 10th, 2006
Preheat oven to 350 degrees. Lightly grease a 13x9 baking dish.
In a large mixing bowl, cream together 1 stick butter and 1 ½ cups brown sugar. Add eggs one at a time, beating after each addition.
In a small mixing bowl, sift 2 cups flour, baking soda, cinnamon, and salt. Add to the sugar mixture, alternating with the sour cream and vanilla. Stir in apples. Pour into baking dish.
Make crumb topping: Combine brown sugar, cinnamon, flour, and butter with a pastry cutter or fork. Sprinkle over cake and then bake until set, 40-45 minutes. Remove and let cool for 10 minutes.
To make glaze: Combine brown sugar, vanilla, and water until smooth. Drizzle over cooled cake and let harden slightly. Serve warm and enjoy!