This recipe for Chocolate Pavlova is courtesy of Nigella and it is absolutely stunning. One of my absolute faves
Preheat the oven to 150° C/300°F/Gas Mark 2 and line tray with baking parchment.
Beat the egg whites until fluffed up and stiff. Beat in the sugar until stiff and shiny. Do this a tbsp of sugar at a time
Sprinkle over the cocoa and chocolate and then fold it all in. I sometimes whisk the cocoa in before folding in the chocolate and it does not seem to matter at all.
Place into the oven and then bake for 1 to 1 hour fifteen minutes. I sometimes do it in my Aga simmer oven for about 2 hours. (110 C)