Revel in Fortnum's Raspberry & Rhubarb Reduced Sugar Conserve. These two 'R's' really do come top of the class. Our raspberries are sourced from local growers on the south bank of Essex's River Stour, while the historical Timperley rhubarb, a great favourite of Georgians, is picked to preserve the intense flavour. A tempting proposition for porridge, it is equally delicious served atop hot-buttered toast.