Combine all ingredients except cream in slow-cooking pot. Cover and cook on LOW for 8 to 10 hours. In last 30 minutes, remove ham bone or hocks; remove and chop meat; discard bones. Return meat to soup along with reserved cubed ham (if you have it). Using a large slotted spoon, put about 2/3 of the peas & parsnips into a blender along with a cup of broth and the light cream and puree for one minute. Pour back into pot. Cook for 30 minutes to 1 hour. Remove bay leaves, cool & refrigerate. Serve following day for best flavor.