Recipes Drinks Cocktails Champagne Cocktail Be the first to rate & review! The Oak Bar, BostonThe Oak Bar's six Champagne cocktail's are made with Westport Rivers sparkling Blanc de Blancs from eastern Massachusetts.Plus: Ultimate Cocktail Guide By Food & Wine Editors Updated on December 23, 2021 Print Rate It Share Share Tweet Pin Email Yield: 1 drink Ingredients 1 sugar cube 2 dashes of Angostura Bitters 1/4 ounce Cognac 4 ounces chilled Champagne 1 lemon twist Directions Place the sugar cube in a chilled flute and saturate with the bitters. Add the Cognac, top with the Champagne and garnish with the lemon twist. Rate it Print