Rich chocolate sponge with orange custard, cranberry compote and pistachios Author: Martin Charlton Serves: 10 Ingredients For the chocolate sponge: 302g dark chocolate (70%) 136g butter 131g egg yolk 286g egg white 95g caster sugar 50g flour For the orange custard: 200ml double cream 700ml milk 2 oranges, zest and segments 4 egg yolks 3