This blueberry sour cream coffee cake recipe is perfect for breakfast or brunch. The cake is made with flour, sugar, baking powder, salt, butter, eggs, sour cream, vanilla extract, and fresh blueberries. The sour cream adds a tangy flavor to the cake, which complements the blueberries perfectly. To make the cake, mix the dry ingredients, cream the butter and sugar, add the eggs and vanilla, and alternate adding the dry ingredients and sour cream. Fold in the blueberries and pour the batter into a greased baking dish. For the streusel topping, mix flour, sugar, cinnamon, and butter until crumbly, and sprinkle over the cake batter. Bake for 45-50 minutes, and enjoy a delicious blueberry sour cream coffee cake!
