crowd, line up several mason jars on the counter, add ice, coconut-lime mixture, and cola ahead of time, then keep them chilled and pour the cream into each glass just as folks walk up to the counter so they can see the pretty swirls.
Food safety tips: Always keep the heavy cream refrigerated until the moment you use it, and don’t leave cream-based drinks sitting out in the sun or heat for long; if serving outdoors, make smaller batches more often so nothing sits more than 1–2 hours at room
