The inspiration for this adventure started with the website http://www.101cheesecakerecipes.com/  The first recipe I tried was Chocolate Raspberry.  I followed the directions which calls for 24 oz of cream cheese, sugar, sour cream, and vanilla to be blended and poured into the crust.  Then the remaining 8 oz of cream cheese is mixed with melted chocolate, red raspberry preserves and dropped by rounded tablespoons over the plain cheese mixture.  The instructions specifically state "Do not swirl".  The picture on the website shows a red colored cheesecake, it does have a rounded  mound of chocolate on the top surrounded by whipped cream.  My cheesecake was white with dollops of raspberry flavored chocolate on top.  While it did not look like the picture the cheesecake was very tasty.  Looking at the picture I wonder if they stirred some raspberry preserves into the 24 ounces of cream cheese.