Combine the sugar and lime juice in a pot and slowly bring to a boil, until the sugar is dissolved. Let cool.

Combine the simple syrup with the wine and vodka in the following proportions: two parts wine to one part lime simple syrup to one part vodka.

For example, one cup wine plus half a cup vodka plus half a cup simple syrup. Or half a cup wine plus a quarter cup vodka plus a quarter cup simple syrup.