Preheat the oven to 325 degrees.
Grease and flour a tube or Bundt pan. Set aside.
Using an electric mixer, beat the butter and cream cheese until well blended and creamed. Add in the sugar, continuing to beat the mixture until it becomes fluffy.
Add in the eggs, one at a time, continuing to mix well after each addition.
Sift and add in the 3 cups of flour and the ¼ tsp of salt. Mix until incorporated.
Pour batter into the prepared pan, smoothing the top. Bake at 325 degrees for 90 minutes or until a toothpick comes out clean.
Cook the cake in the pan for 10 minutes, then turn out onto a wire rack to cool.