Russian Spring Punch

Instructions

1
Chill a highball glass in preparation.
2
Add the vodka, freshly squeezed lemon juice, crème de cassis, and simple syrup to a cocktail shaker.
3
Fill the shaker with ice and shake vigorously until the mixture is well chilled.
4
Strain the mixture into the chilled highball glass filled with fresh ice.
5
Top with champagne to add a sparkling finish.
6
Garnish with plump blackberries and, if desired, a slice of lemon for an optional touch.