Chill your glasses in the freezer for at least 10 minutes so they stay frosty and help keep the drink bubbly longer.
Combine fresh cranberries, sugar, and water in a saucepan over medium heat, and bring to a gentle simmer. As the cranberries burst, mash them lightly with a spoon to release their juice, creating a vibrant red mixture. Continue simmering until the syrup thickens slightly, about 10 minutes.
Strain the syrup through a fine strainer into a bowl, pressing gently to extract as much juice and flavor as possible. Discard the solids and let the syrup cool to room temperature.
Once cooled, add 1-2 tablespoons of the cranberry syrup into each chilled glass, depending on how vibrant and tart you want the drink.
Pour chilled sparkling wine slowly into each glass, filling about three-quarters full, to preserve the bubbles and create a lively, effervescent effect.
Add a splash of fresh orange juice—about 1-2 tablespoons—into each glass to brighten the flavor and add citrus aroma.
Gently stir the mixture with a spoon or stirrer to blend the syrup, wine, and orange juice smoothly. Watch as the drink’s vibrant red color swirls and bubbles come alive.
Garnish each glass with a few fresh cranberries and a sprig of mint for a festive, eye-catching finish.
Serve immediately and enjoy the sparkling, tart, and colorful celebration in your glass!