Terret Blanc is one of those very localised grape varieties that you only find in the Languedoc, mostly in the Hérault department. It comes in three, mutated colours – white, red and pink (gris) – and tends to be blended with other varieties. This white version is great value at its normal price of £8.49, but a steal at £6.49. Grown on the sort of clay and limestone soils you find in Burgundy, it has some of the zip, citrus crunch and steeliness of an unoaked Chablis, but with top notes of wild Mediterranean herbs. Long, tangy and refreshing.