Though its name simply means “scented candle” in Thai, this double-wicked curl of beeswax is no ordinary room freshener. Tian op is a flavoring agent, or rather, a scenting agent, used to enhance specific dishes in Thai cuisine.
Chefs light the U-shaped candle at both ends, place it on top of the food to be scented, and cover it with a lid.
— Read more in The Magic of Thailand’s Culinary Candle at Atlas Obscura.