Preheat oven to 300 degrees and spray a 12-cup Bundt pan with baking spray.
Using an electric stand mixer with a paddle attachment, beat sugar, butter, and cream cheese at medium-high speed until very fluffy and pale, about 5 to 8 minutes.
Beat in eggs one at a time on low speed, just until the yellow disappears. Scrape down the sides of the bowl several times.
Add egg yolks, half-and-half, and vanilla extract and beat on low just until mixed in.
Whisk together flour and salt in a medium bowl and mix it into the batter in 3 additions with the mixer on low speed. Scrape down the sides of the bowl halfway through.
Transfer batter to prepared pan. Bake for 1 hour 20 minutes to 1 hour 30 minutes or until a wooden pick inserted in the middle comes out clean. Let cool 10 minutes in pan and then remove cake from the pan to cool completely.
Be sure to use a good quality baking spray. I have good results with Baker's Joy.