"A good coffee house will have good coffee cake, and Starbucks is no exception. The world's biggest coffee chain offers cake that is moist and buttery, with a perfect cinnamon streusel crumb topping and a strip of cinnamon sugar through the middle. You may find slight variations of the cake at different Starbucks locations. Sometimes the cake is topped with chopped pecans and some may be dusted on top with a little powdered sugar. The recipe below clones the basic recipe, and if you want nuts on top, mix 1/2 cup of chopped pecans into the streusel topping before adding it. Source: "Top Secret Recipes Unlocked" by Todd Wilbur...."