Rhubarb Swirl

"The delicate soft pink waves of rhubarb swirl look so pretty, I always think that this pudding would make the perfect end to a romantic dinner for two, on Valentine's Day maybe. And it tastes wonderful, too ... velvety and creamy and thoroughly indulgent. So it might come as a surprise to you that it is not at all difficult to make. All you need is pink rhubarb, sugar and double (heavy) cream, a saucepan, a bowl, a whisk and some pretty glasses or pudding bowls to serve your creation in."