She'll never settle

A very sultry drink starring Cynar
2 oz Cynar
1 oz Grapefruit juice
1 oz Sweet vermouth, Carpano Punt e Mes
12 oz Simple syrup (Demerera, 2:1)
2 ds Orange bitters
1 twst Orange peel
Shake lightly - enough to marry the ingredients together (you're dealing with citrus, right!) but not enough to overly-dilute the ingredients. Strain, into a rocks glass over a large ice cube - express the oils from a large swath of orange rind.
Bitters are 'house bitters' but I use Regan's. I tried to re-create this cocktail as best I could - there's no recipe online to loot. This is my best guess. If anyone has connections to the folks at the Violet Hour, I welcome some fact-checking.
Was on the menu at the Violet Hour in Summer 2012
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