In Mrs Beeton’s recipe ‘No 1482 for Snow Eggs or Oeufs a la Neige’ on page 747 of her famous book of Household Management, published in 1861, her ingredients are the same as mine, but the method she uses for the meringue is different. She poaches spoonfuls of the whisked egg whites in milk for 2 minutes and scoops them up, placing them onto the custard. This is absolutely correct, but it is very difficult to maintain their shape, and instead I bake mine for about 35 minutes in the oven. They are so much easier to handle this way.