Chestnut Floating Islands

In a clean, grease-free bowl whisk the egg whites until they form stiff peaks, then gradually whisk in the sugar till you have a stiff glossy mixture.

Spoon the meringue into six teacups.  Then, three at a time, place the cups in the microwave and cook on a medium setting for 1 minute 45 seconds, until they have risen and are slightly firm to touch.  The merinuges will shrink back down as they cool then keep them covered still in the cups in the fridge until you are ready to serve.

To make the sauce, simply whisk together the chestnut puree and the cream, then chill really well.  Finally, cut the marrons glaces into small pieces.  To serve, divide three-quarters of the sauce between the glasses, then spoon a meringue on to each one (don't tip them out, as some liquid may have gathered in the base of the teacup).  Lastly, drizzle a little sauce over each one and sprinkle with the marrons glaces.