Preheat oven to 325 degrees. Butter & flour Bundt pan.
Using electric or stand mixer, mix:
3 sticks butter
3 cups sugar
until light and fluffy (~5 minutes or so).
5 eggs (one at a time)
Beating just until the yellow disappears before adding the next egg.
Add, alternating a little at a time:
1 cup milk
3 cups minus 3 Tbsp all-purpose flour
2 tsp vanilla
Pour into Bundt pan and bake for ~ 1 ½ hours or until done. Cool 10 minutes in pan before inverting onto serving plate.