Cascina Castle't 2006 Moscato d'Asti
Try a nice, chilled bottle of this on a hot day. It's made frizzante (slightly sparkling), and has a little bit of tartness on the finish to make it refreshing.
Love pairing it with some Walkers shortbread (rich from the butter, but not sweet enough to compete with the wine). It's also a tad salty, which makes the Moscato seem even better.
And, for the rose lovers -
Francis Coppola Sofia Rose
Off-dry, and a real quencher...