The best rhubarb amp custard in a kilner jar a stunning and very useful afterwards glass kilner jar filled to the brim with the best rhubarb amp custards weve ever tasted thats because we have refined the recipe over and over again and had them made especially and exclusively for a quarter of you wont find them anywhere else each individual rhubarb amp custard is a work of art and is packed full of flavour the rhubarb y part of the sweet is really lovely and tart just how rh