In large bowl, beat cream cheese, sugar and flour with electric mixer on medium speed about 1 minute or until smooth and creamy. On low speed, beat in eggs, 1 at a time. Reserve 1/2 cup batter. Fold caramel mixture into remaining batter without mixing it in completely, leaving a few streaks. Pour over crust. Drop spoonfuls of reserved batter over the top. Cut through batter several times with knife for marbled design.