This is old favorite in New Orleans all our grandmothers used to make.
8-ounce package cream cheese (at room temperature)
14-ounce can condensed milk
½ cup fresh lemon juice
Combine the cream cheese, condensed milk and lemon juice with an electric mixer. Layer in a pie pan with vanilla wafers. Pour the mixture over the wafers and top with Cool Whip. Refrigerate for 8 hours then serve.