This coffee cake is the perfect way to start your day with a delicious and fruity breakfast treat. The cake batter is made with a blend of flour, sugar, eggs, and butter, and then topped with a layer of sliced strawberries and rhubarb. The streusel topping is made with a mixture of flour, sugar, and butter, and then sprinkled on top of the fruit. Once baked, the cake is moist, tender, and perfect for pairing with a cup of coffee or tea.