Place fresh cranberries into a tall glass and gently muddle them with a muddler or the back of a spoon for about 10 seconds, just enough to crush the berries slightly and release their vibrant red juice.
Fill the glass halfway with ice to keep the drink chilled and help blend the flavors smoothly.
Pour in the orange liqueur and fresh orange juice over the muddled cranberries, allowing the bright citrus aroma to mingle with the tart berries.
Slowly pour the chilled sparkling wine into the glass, tilting it slightly to preserve the bubbles and create a lively, frothy top.
Gently stir the mixture with a long spoon or straw, blending the flavors without losing the carbonation, until everything looks evenly combined with a slight foam on top.
Garnish the drink with a twist of orange peel and a few whole cranberries for a colorful, festive presentation.
Serve immediately with a straw or small spoon, allowing the bubbles and bright flavors to shine in this cheerful, sparkling cocktail.