Gewurtztraminer and Pinot Gris, macerated on the skins. 

From the importer: "Originally inspired by Severine Peru formerly of Ten Bells in New York City and was an exclusive wine sold only there, but now is available for everyone to enjoy (although in very small quantities). The name is a macabre play on words – the French pronunciation of Si Rose is the same as cirrhosis, hence the liver on the label."