Chill your glasses in the freezer for at least 10 minutes to keep the drink cold and fizzy.
Place fresh cranberries in a small saucepan with water and sugar, then warm over medium heat. As it heats, the cranberries will soften and begin to burst, releasing their vibrant red color and tangy aroma.
Cook until the cranberries burst, about 5 minutes, then gently mash them with a spoon to release more juice. The mixture will become fragrant and bubbling as the flavors meld together.
Remove from heat and strain the mixture through a fine sieve into a bowl, pressing gently to extract the bright red syrup. Let the syrup cool to room temperature.
Pour the chilled sparkling wine into each glass, filling about halfway, then add 1-2 tablespoons of the cooled cranberry syrup into each glass. Gently swirl or stir to combine, watching the vibrant red color swirl through the bubbles.
Top off each glass with more sparkling wine, pouring gently to preserve the bubbles. The drink should be fizzy and beautifully layered with a bright red hue.
Garnish each glass with a few fresh cranberries and a twist of orange zest to add aroma and visual appeal. Serve immediately for the best bubbly, bright, and festive presentation.