Melt the sugars, syrup and butter in a saucepan and boil for 5 minutes.
Add the cream and vanilla, stirring together, and then take off the heat.
Divide the sauce between two cups or small bowls, and then arrange the fruit on 2 saucers or on a plate, as you see fit.
Recipe courtesy of Nigella Lawson(Copyright 2007, Nigella Express, Hyperion, All Rights Reserved)