This tastes of pure, pale white limestone transformed into crisp yellow apple. It’s appetite inducing in its zesty freshness, bright white floral notes and clean, lively length of flavor, especially if there are oysters nearby. The Aubry brothers maintain a reserve wine blend composed of vintages going back to 1998; that blend provides 50 percent of this Brut, with the other half from 2013. The varietal composition is also distinctive: pinot meunier makes up 45 percent, with chardonnay and pinot noir each providing 25 percent and the remaining five percent made up of traditional local varieties including arbanne, petit meslier and fromenteau.