1 hr 35
By Patricia Lousada
More a mousse than a cake, this is one of those desserts that make chocolate lovers gasp with pleasure after the first melting mouthful. It takes no time to make but does need to be assembled with care.
Lightly grease a 24-25 cm (9½-10-inch) cake tin with unsalted butter and line the bottom with baking parchment.
Break the chocolate into small pieces and place in the top of a double pan set over h