Add all the ingredients except for the sparkling wine to your shaker.
Add ice and shake for about 8-10 seconds.
Strain into a collins glass with ice, or a chilled flute.
Top with sparkling wine.
Express the oils of the lemon peel over top and drop it in for garnish if you choose.
Notes
Try adding different bitters, a small splash of absinthe, and a little salt or saline solution if you'd like.Buy a decent bottle of sparkling. Don't go super cheap but don't break the bank either, shoot for the 10-15 dollar range.