Château d'Yquem is "indisputably the greatest sweet wine of France" (Hugh Johnson) - wine at its most decadent and luxurious. Sauternes is special because it relies upon 'noble rot' - a fungus that appears in some Bordeaux vineyards in autumn, causing grapes to shrivel, and flavour, sugar and acidity to intensify. At Château d'Yquem, pickers may have to pass through vines up to ten times over a period of two weeks, gathering individual grapes, as and when they're affected. Where you'd normally expect to make a bottle per vine of standard dry white Bordeaux, at Château d'Yquem you're lucky to get a glass. Château d'Yquem is all about perfection at every level. Serve cool on its own, with Roquefort cheese, pâté de foie gras or a fruit tart.