# Steps:
01 - Place two wine glasses in the refrigerator for 10 minutes to thoroughly chill before preparing the cocktail
02 - Pour 1.7 fl oz of crème de cassis into each chilled wine glass
03 - Top each glass with 5.1 fl oz of chilled dry white wine
04 - Stir gently to blend the cassis and wine without disrupting the wine's effervescence
05 - Add a few ice cubes to each glass if desired for additional chilling
06 - Garnish each cocktail with fresh blackcurrants or a lemon twist and serve immediately