How to bake a cake.
Preheat the oven to 325 °F and grease and flour a cake pan. Place the butter and sugar in a mixing bowl and beat them together until the mixture is light. Add the eggs and vanilla. Stir in the cake flour. Keep the electric mixer on low or use a wooden spoon to stir the flour in a bit at a time until it's just incorporated. Pour the batter into the pan. Bake the cake for 1 hour 15 minutes.