Chill everything first. Cold juice and mixers keep the mocktail crisp and bright.
Pop your glasses in the freezer for 10 minutes for frosty rims.
Mix the base. In a shaker or jar, combine cranberry juice, pomegranate juice, lime juice, orange juice, syrup, and vanilla. Add ice, seal, and shake for 10–15 seconds.
Prepare the glass. Fill a highball or stemless wine glass with fresh ice. If you like, swipe an orange slice around the rim and dip it in sugar for a light sparkle.
Pour and top. Strain the juice mixture into the glass.
Top with chilled ginger beer for gentle spice and fizz. Stir once to combine.
Garnish generously. Add a few fresh cranberries, a thin orange slice, and a rosemary sprig. The rosemary smells amazing with the citrus and cranberry.
Taste and adjust. If it’s too tart, add a splash more syrup.
If it’s too sweet, a squeeze of lime sharpens it up.
Serve immediately. This drink shines when bubbly and ice-cold.