For the FillingWith electric mixer, cream butter and sugar
Add egg yolks blend until combined
Add vanilla, and flour beating on medium speed
Pour into a prepared crust and bake for 45-55 minutes or until set in the middle
Chill pie overnight
For the CrustMake crust using an electric mixer, beat cream cheese and butter until well combined. Add flour and mix until dough forms a ball. Pat into a 9 inch pie pan. Chill.
Optional: 9 inch frozen deep dish pie shell