Known as Mataro in California and Monastrell in Spain, Mourvèdre can produce bold, tannic, highly alcoholic red wines. They usually show no shortage of fruit as well, and the best examples keep it all in perfect balance. Rhône-style blends are cropping up all over the world, and one of the classic tried-and-true combinations is "GSM," or Grenache-Syrah-Mourvèdre. The "M" contributes focus and fleshy character to blends - but Mourvèdre also shines on its own as a varietal wine.