Cuba Amarga

34 oz Bitters, Angostura
34 oz Demerara Rum, Lemon Hart 151
12 oz Lime juice
12 oz Agave syrup (or 2:1 simple)
1 12 oz Cola, Coca Cola
Instructions
Shake, strain, rocks, top with Coke.
Notes
I haven't tried it, but the 1/2 oz of syrup may be excessive, even given the drying effects of all that Angostura.
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