Biac sits on one of the highest hills in Cadillac Côtes de Bordeaux, looking down on the Garonne, and the Lebanese-British Asseily family have spent two decades quietly turning a derelict property into one of the appellation's standouts. The terroir runs from sandy clay into gravel, so the family adjusts the blend each vintage - some years Cab-led, some Merlot-led - depending on what the season delivers. 2016 was a benchmark Bordeaux vintage with ripe fruit and firm structure; this is the kind of wine that punches well above its appellation's reputation.