Rooted in the Vallée de la Marne since 1743, the Grumier house is one of the few grower-producers (récoltants-manipulants) to proudly champion Pinot Meunier as its signature grape. Fabien and Hélène Grumier farm 8 hectares certified Haute Valeur Environnementale on the clay-limestone soils of the Marne, vinifying in temperature-controlled stainless steel tanks and oak barrels, with carefully managed malolactic fermentation to preserve the freshness of the terroir. "Ô ma Vallée" is the estate's signature cuvée: 80% Pinot Meunier and 20% Pinot Noir, crafted with the precision of an Extra Brut to reveal all the frankness of a fully ripe Meunier. It is rated 91 by Wine Enthusiast and 89 by Decanter.

The colour is beautifully bright, enlivened by disciplined bubbles and a persistent collar of mousse. The nose combines fresh apple and raspberry with hints of brioche and toasted almond, and a chalky touch that is an unmistakable signature of the Marne. The palate delivers on the aromatic promise: the attack is supple, the bubbles fine, the texture creamy. The wine gains breadth on the mid-palate (quince, light red fruit, a buttery touch) before a vibrant finish driven by precise acidity that gives it length and definition.

"Ô ma Vallée" is as confident at the table as it is as an aperitif: warm gougères or a salmon tartare with citrus to start, then scallops pan-seared in lightly salted butter or poultry with morels for the main course. Serve at 10°C, without decanting.