3 to 4 ounces rosé champagne
½ ounce elderflower liqueur (John likes St-Germain)
7 dashes bitters (John likes Peychoud's)
2 lemon wheels, for garnish
Combine all ingredients except for lemon in an ice-filled wine goblet, stir gently and garnish with lemon wheels and a straw.
Always drink responsibly.