To prepare a very blueberry cheesecake cake recipe, you'll first need to prepare the cake batter. Preheat the oven to 350?F (180?C) and grease and flour two 9-inch springform pans. In the bowl of an electric mixer fitted with the paddle attachment, cream together the butter and sugar on medium speed until light and fluffy, about 2 minutes. Add the eggs and vanilla and beat until combined. Pour the batter into the prepared pan and bake for 35 to 40 minutes or until the toothpick inserted in the center comes out clean. Let cool before removing from the pan.