Delicious depth and richness with real freshness give this Bordeaux white perfect balance. It’s a collaboration between our award-winning winemaker Jean-Marc Sauboua and owner of Château Le Coin Ludovic Roussillon.

The key ingredient is Sauvignon – Gris that is, not Blanc – which combines spicy richness and lime freshness. All the grapes are tended at Ludovic’s superb estate in the Entre-Deux-Mers, just over the river from Le Chai au Quai, our winemaking HQ in Castillon.

His claret is always a hit and nine years ago we persuaded him to make us a white too. The limestone soils help to produce lovely fruit intensity, while old-vine grapes and a tiny portion of oak fermentation lends even more richness. Great solo or with a creamy gratin.

Lying close to Margaux's Châteaux Giscours and du Tertre, Château Cazauviel remains surprisingly under the radar. It was inherited by Régis Bernaleau from his father in 1978 and today remains in family hands. It is situated on the prized gravel soils of the Arsac plateau, which lends both an intensity and a finesse to the wine. This pretty claret is from a vintage struck by early April frosts – the most devastating for many years.

It reduced yields, but as Decanter wrote, "there are some excellent wines." Most, like Cazauviel 2017, are not long keepers, but makes delightful drinking now. Ideally open a couple of hours before serving and decant. It'll make a delicious glass with roast chicken with morels or a mushroom croustade.

Christophe Reboul Salze is a big name in Bordeaux. Born in central France, he fell in love with the region's wines in his youth. Arriving in Bordeaux in 1980, he decided to make his passion a career. He gained a decade's experience trading in Grand Cru Classé wines and became director at one of the leading houses. Then started his own négociant business, which remains today a leader in the field.

However, he wanted to make wine too, so he purchased three estates in the Right Bank's Premières Côtes de Blaye and employed Stéphane Derenoncourt as consultant. The results have been exceptional. This superb claret uses a cuvée from each of his properties, Châteaux Les Grands Marechaux, Gigault and Belle Coline. A fine exclusive Bordeaux red.

Once a sister property to Thomas Barton's Châteaux Langoa and Léoville Barton, 18th-century Château Le Boscq was purchased by Maison Dourthe in 1995. It then went through a complete renovation and a big step up in the quality of its wine. Its 18 hectares of vineyard, unusually in one single block, are planted on gravel and clay soils in the northern part of Saint-Estèphe.

Clay provides a cooler soil which favours Merlot, hence a higher than normal proportion of Merlot is planted – just over half, with 35% Cabernet Sauvignon, the usual hero of the Left Bank, plus Petit Verdot and Cabernet Franc. A year's ageing in nearly half new oak barrels adds to the gravity and longevity of this firm claret. Open early and decant or cellar a while.