Freeze the wine overnight (preferable in ice cube trays).
For the strawberry syrup:
Make the syrup by combining the sugar and water in a saucepan over medium heat till the sugar is dissolved. Then switch off the heat, and add in the strawberries and leave till cool.
Then blend into a smooth syrup and chill for at least 1 hr but preferably overnight.
Make the strawberry frosé:
Add all the ingredients including the lemon juice into a blender and blend into a slushy consistency before serving