For the rose syrup, bring the sugar to the boil with water and stir until the sugar is dissolved. Remove from the stove, stir in 1 - 2 tablespoons of rose water, pour into a small bottle and allow to cool. The syrup will keep in the refrigerator for at least 1 week.
For the cocktail, press the mint leaves and rose petals on or rub them in your hands so that they release their aroma. Pour into a glass and press lightly with a pestle so that they release their aroma. Pour 30 - 40 ml gin, approx. 1 tablespoon lemon juice and 2 - 3 tablespoons syrup into the glass and fill up with sparkling wine. Serve with a straw.
The working time is approx. 5 minutes without preparing the syrup. Use all ingredients well chilled and dose according to personal taste. If you don`t want papers in your drink, you can muddle them in a shaker, shake them cold on ice with syrup, lemon juice and gin and strain into the glass.