This is probably one of the lightest and most mouth-watering puddings ever invented. This delightful old fashioned British "Pud" consists of layers of baked custard, raspberry jam and is finished with clouds of light, fluffy meringue - truly a Queen in the pudding world. It is a quintessential Nursery dessert, something that Nanny would rustle up for her young charges in the nursery. My mum would often make this for Sunday high tea, and we all loved it. I often use brioche crumbs for a richer custard base, but any white bread crumbs will be fine. There are numerous recipes for this classic dessert; this recipe is by James Martin, one of my favourite British chefs.