I made the cocktail featured here last night and it's quite good! Once you get past the big three bitters (Angostura, Peychaud's, and orange), celery bitters are one of the bottles I reach for most often to add an interesting vegetal note to cocktails.

A Surprising, Vegetal Riff on the Bamboo
Sherry and vermouth and...celery bitters? Yes. Celery bitters.
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