Beat cream cheese, 1 egg, 1/2 cup sugar, 1 teaspoon vanilla and salt at medium speed with an electric mixer until smooth. Pour chocolate mixture into piecrust, spreading evenly. Pour cream cheese mixture over the chocolate layer.
05Whisk together corn syrup, melted butter, remaining 3 eggs, remaining 1/4 cup sugar and remaining 1 teaspoon of vanilla. Stir in pecans and pour over cream cheese layer.
06Bake at 350 degrees for 55 minutes or until set, shielding pie after about 45 minutes to prevent excessive browning. Cool completely on a wire rack. Drizzle each slice with chocolate syrup if desired.