Pour half the bottle of rosé into ice cube trays. Freeze for 4-6 hours until solid.
Add frozen strawberries, rosé ice cubes, and remaining liquid rosé to a blender.
Pour in simple syrup and regular ice cubes.
Blend on high speed for 30-45 seconds until smooth.
Pour mixture into wine glasses.
Garnish with fresh strawberries and mint if desired.
Notes
The texture can be adjusted by adding more ice for a thicker slushie or more liquid rosé for a thinner drink.Make sure to use a dry rosé wine rather than sweet varieties to balance the natural sweetness of the strawberries.The mixture may separate after sitting. Give it a quick stir before drinking.Store any leftover mixture in the freezer for up to 2 days. Let it thaw slightly and re-blend before serving.For a non-alcoholic version, replace the rosé with sparkling grape juice or strawberry juice.