Cut the top off of the pumpkin and remove the seeds and strings. Carve out the flesh of the pumpkin until the shell is about 1/2 inch thick. Be careful not to make any holes in the skin – the pumpkin is the serving bowl. Steam the
In a bowl, combine the first six ingredients. Place half of the mixture at a time in a blender; cover and process until pureed. Transfer to a large bowl; stir in cream and orange juice, if desired. Cover and refrigerate for 2 hours.