In a bowl of a stand mixer or using a hand mixer, combine the butter and cream cheese and beat until fluffy.
Add the sugar, eggs, flour, and vanilla extract, beating well after each ingredient is mixed in.
Grease a bundt or tube pan with shortening, then dust with flour.
Bake at 325 degrees F for 90 minutes, or until a toothpick comes out smoothly.
Let cool for 20 minutes, then remove the cake from the pan. Serve as is or with your favorite topping or glaze.
