This cocktail worked out pretty well:
Madame Toulouse (2 servings)
- a bit more than 1.5 oz grapefruit vodka
- 1.5 oz lemon juice
- 1.5 oz peach simple syrup
- small drop of honey
- shake over ice, strain
- add 3 oz of sparkling wine
For the peach simple syrup, I simmered one cup of water and one cup of sugar with a peach cut in pieces.