This lemon blueberry coffee cake recipe is a delicious combination of sweet and tangy flavors. The cake is made with fresh blueberries and lemon zest, which add a burst of flavor and color. The streusel topping is made with brown sugar, cinnamon, and butter, which creates a deliciously 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.
