Chocolate Mille-Feuilles

Substituting cocoa powder for a little of the flour in puff pastry will produce crisp chocolate mille-feuilles. The flavour, though distinct, is delicate, so avoid cluttering the dish with colourful fruit; even the usually compatible orange or cherries will upstage the pastry. A few toasted almond flakes or hazelnuts would be all right but best of all is to explore a chocolate theme throughout and serve the pastry, still warm, with cocoa pastry cream filling and a few shavings of dark choco