The techniques of sparkling winemaking did not originate with the Benedictine monk Dom Pérignon, nor was the first purposely sparkling wine produced in the region of Champagne. Regardless, through centuries of refinement Champagne has become the world’s leading sparkling wine and the vinous embodiment of luxury and celebration.
I was just revisiting this study guide and found, "Blanc de Blancs: 100% Chardonnay is required" After re-reading the cahier des charges it does not seem to be the case. The only stipulation is that they must be made from 100% white grapes allowed in the AOP.
Ive seen it where wine from other bottles being disgorged tops off the others.
I must be missing something very obvious to everyone else but; When a producer makes a "Zero Dosage" champagne what do they use to replace the wine lost after disgorgement since they are not adding liqueur d'Expédition?
get on wine search dot com and you will get the answer
If you're just wondering about current releases and ignore the auction market, I'm pretty sure Krug's Clos d'Ambonnay is the most expensive.