In a medium, nonreactive saucepan, bring the rosé and sugar to a boil. Remove from the heat, add the raspberries, and let cool to room temperature. Pass the mixture through a food mill fitted with a fine disk, or puree in a blender or food processor and then press the puree through a strainer to remove the seeds. Chill the mixture thoroughly, then freeze it in your ice cream maker according to the manufacturer’s instructions.
