Using a large standing mixer, beat the butter until creamy and fluffy.
Gradually add in the sugar and whip until light and airy
In a separate bowl mix together the eggs, vanilla and salt.
Very slowly and gradually pour in the egg mixture into the butter/sugar in the standing mixer. You want to create a thin, slow, steady stream so as not to deflate the fluffy batter in the mixture.
Beat until fully incorporated, then gradually add in the flour.
Once the batter is fully mixed in, pour the batter into the pre-greased bundt pan
Bake for 1 hour 15 mins or until you can pull a crumby toothpick from the center slightly underbaked.