Place a sugar cube in the bottom of a chilled Champagne flute.
Saturate the sugar cube with 2 dashes of Angostura bitters.
Add the cognac.
Slowly and gently pour chilled Champagne down the side of the glass to preserve the bubbles.
Garnish with an expressed orange zest twist and a maraschino cherry on the rim.
The sugar cube is not just sweetener - as it slowly dissolves, it acts as a nucleation point, creating a continuous stream of fine bubbles rising through the glass. Use a good-quality Brut Champagne or Champagne-method sparkling wine for the best result.
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