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1 oz    Pierre Ferrand 1840 Cognac

½ oz   Pierre Ferrand Dry Curacao

2 oz    Fresh Lemon Juice

¼ oz    Agave Nectar

1 oz    Sparkling Wine

Place all ingredients except Sparkling Wine, in an ice filled Boston Shaker and shake to chill, strain into a sugar rimmed Coupe glass, top with sparkling wine.  Garnish with a twist of Fresh Orange.