Combine all ingredients with approximately one ounce of pebble ice in a cocktail shaker and whip shake for 8-10 seconds. Pour unstrained into a cocktail glass, top with guava soda, and fill with more pebble ice.

Glass

Rocks Glass

Ice

Pebble

This tropical cooler balances the grassy, vegetal punch of rhum agricole against the vanilla-citrus sweetness of Licor 43, with fresh lime providing necessary acidity. The guava soda lengthens the drink into something refreshing and approachable, while a touch of bitters adds depth beneath the fruit-forward surface. It drinks easy over pebble ice, the agricole's cane character remaining present but softened.