The game this drink is named after is French while the main ingredients are Spanish and Italian, but they do play Pétanque in the Basque region of Spain...
I had no Fino, so I substituted Amontillado sherry. I find the Pétanque delicious and complex, but light. And yes, it’s great on the rocks, or rather, one large rock. It will be nice to have a classy but lower ABV cocktail to offer my guests.