Any discussion of sparkling wine should begin at the beginning, in Champagne. The only wines that can truly be called Champagne come from grapes grown in the chalky soil of the region of the same name in north-eastern France.

These are the grand-daddies of the sparkling wine world, and range in price from the affordable to the unfathomable, but savvy shoppers can pick their way through the shelves and emerge with a winner that suits their budget.

So, we’re starting at the top, which means the finest Champagnes, also known as Crème de Tete, or Cuvée de Prestige. These are wines that define a house’s style and go by proprietary names like Cristal, Dom Pérignon, and Cuvée Winston Churchill (one of my faves). These represent the pinnacle of the Champagne blender’s art and are wines that frequently benefit from -- and many times demand -- cellaring to release their potential. Right off the shelf the current release of these wines can be somewhat disappointing.