If you want to make some fun berry ice cubes for serving, drop a few berries into an ice cube tray. Fill the cavities with fresh orange juice (no need to make a lot, 4-6 should do for about 2 drinks). Freeze until frozen, about 3-4 hours.
To make the cocktail, add the rosé, liqueur (if using), and raspberries into a cocktail shaker or jar. Muddle everything together.
Add a few ice cubes to the cocktail shaker or jar and shake for about 30 seconds, until cold.
If you’re using the berry ice cubes, place them into your glass with an orange slice. If you’re not using them, a few regular ice cubes are fine*.
Pour the rose cocktail mixture into the glass and top with seltzer or club. Cheers!
Notes
While it is usually seen as a faux pas to use ice in wine, it’s fine in this spritz. I actually prefer these to be icy cold.