Calibogus

Glassware: Collins or highball

3 oz. seltzer
1/4 oz. fresh lime juice
3/4 oz. molasses syrup
1 drop spruce beer soda extract
3/4 oz. Zirbenz Stone Pine liqueur
1 1/4 oz. blended aged rum

Garnish: Swizzle stick

Add the seltzer to the bottom of a Collins or highball glass. Add the remaining ingredients to a cocktail shaker and shake with cracked or cubed ice. Strain into the glass and carefully add cracked or cubed ice and garnish.

Source: Smuggler's Cove modern original, inspired by traditional recipe in 'And a Bottle of Rum: A History of the New World in Ten Cocktails'