This strawberry rhubarb coffee cake recipe is perfect for a weekend brunch or afternoon tea. The cake is made with a moist and fluffy vanilla cake base, topped with a layer of fresh strawberries and rhubarb, and finished with a crumbly streusel topping. The secret to this recipe is to use a combination of sour cream and buttermilk to create a tender and tangy cake. Serve this cake warm with a cup of coffee or tea for a delicious treat.
