In a small saucepan, combine raspberries and grape juice. Bring to a boil; reduce heat. Cook and stir over medium heat until liquid is almost evaporated, about 30 minutes. Remove from the heat. Press through a fine-mesh strainer into a bowl; discard seeds. Transfer puree to a pitcher. Stir in wine and strawberries. Refrigerate, covered, until chilled. Serve with ice; garnish with mint.
Rose Wine Cocktail Tips
How can I increase the sweetness in this cocktail?
You can increase the sweetness by choosing a sweeter type of wine.
How can I turn this wine cocktail into a spritzer?
Just add white or club soda to make this a wine spritzer.