Beat 1 of the eggs, 1/2 cup of the sugar, the cream cheese, 1 teaspoons of the vanilla, and salt at medium speed with an electric mixer until well blended. Pour this mixture into frozen piecrust; chop the pecans and spread on top of pie, evenly.
Then whisk the corn syrup and the remaining 3 eggs together, Then add in the remaining 1/4 cup sugar, and the remaining 1 teaspoons vanilla and continue to whisk. Then pour this mixture on the pie, on top of the pecans. Place the pie on a cookie or baking sheet.
Bake at 350° for 50 minutes until the pie is set. Cool for approximately 1 hour. Either serve immediately, or refrigerated for up to 2 days, covered.