I found a bottle of Byrrh Grand Quinquina today! I've seen it listed on blogs, but never found a bottle locally until now. Intriguing stuff - not quite sure if it'll join the regular rotation yet, but this drink was a good first crack at cocktail use.
2 oz Temperance Trader Chinato Barrel Aged Bourbon (remember this stuff?)
1/2 oz Byrrh Grand Quinquina
1/2 oz sweet vermouth (Carpano Antica, because only the best!)
1 (small) dash cinnamon syrup
2 dashes Peychaud's bitters
2 dashes Bitter Truth Jerry Thomas' Own Decanter bitters
Stir and strain into a rocks glass; garnish with an orange peel, if you must.
The name of this one comes from the town at the southern tip of France where Byrrh was invented.