Add the frozen strawberries to the pitcher of a high-powered blender. Pour in the rosé wine. Puree on HIGH until smooth. Taste and blend in sugar, one tablespoon at a time, until desired sweetness is reached. Serve immediately.
Fresh, overripe berries may be frozen solid and then used in this recipe, as they are often sweeter than frozen berries from a bag.
You may use simple syrup, strawberry simple syrup, or honey in place of the granulated sugar as a sweetener.
To make Frosé with a whole bottle of rosé (750mL), use 6 to 7 cups of frozen strawberries (which will yield 6 total servings).