Best Champagne not available in the states was,

Pascaline and I drank the Vouette et Sorbée Extra Brut Fidèle one evening at a bare bones, natural wine bar (Les Crieurs de Vin) in the medieval city of Troyes. Its got the apple cider-tell of natural wine making, and might give drinkers expecting neutral fizz a fright.

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Producer is Bertrand Gautherot, who makes wine in the Aube, a part of the appellation long disregarded and derided, but home to two other fantastic producers, Lassaigne and Fleury.