In a separate, large bowl, beat together the cream cheese and sugar with a hand mixer, then mix in the sour cream, lemon, vanilla, cornstarch and salt. Mix in the beaten eggs until just combined. Be careful not to overmix.
16 oz 2 blocks cream cheese, softened, ½ cup granulated sugar, ¼ cup sour cream, ½ tbsp lemon juice, 1 tsp vanilla extract, ½ tbsp cornstarch, ⅛ tsp sea salt, 2 eggs