This blueberry coffee cake recipe is a delicious twist on the classic coffee cake. The cake is made with fresh blueberries, which add a burst of flavor and color. The streusel topping is made with oats, brown sugar, and cinnamon, which creates a crunchy texture. This coffee cake is perfect for a summer brunch or as a dessert. It's easy to make in your Thermomix and is sure to impress your guests.
