This apple streusel coffee cake recipe is perfect for fall. The cake is made with fresh apples, which add a sweet and tart flavor. The streusel topping is made with brown sugar, cinnamon, and butter, which creates a deliciously crunchy texture. This coffee cake is perfect for a Thanksgiving brunch or as a dessert. It's easy to make in your Thermomix and is sure to be a hit with your family and friends.