Star anise has a bold, licorice-like flavor that’s sweet, slightly bitter, and warm. It tastes similar to anise seed and fennel but hits harder, with a more intense and lingering quality. If you’ve ever had Vietnamese pho or Chinese five-spice powder, you’ve tasted its signature note.
The Core Flavor Profile
The dominant taste is unmistakably licorice. That comes from a compound called trans-anethole, which makes up roughly 72 to 92 percent of star anise’s essential oil. It’s the same compound found in licorice root, anise seed, and fennel, which is why all four ingredients land in similar flavor territory. But star anise delivers it with more force.
Beyond that primary licorice punch, you’ll pick up herbal, slightly lemony, and woody undertones. There’s a noticeable sweetness up front, followed by a mild bitterness that lingers on the back of the tongue. Some people also detect a faint warmth, not spicy like chili but closer to the gentle heat you get from cinnamon or clove. The aroma is intensely fragrant, almost perfume-like, and often stronger than the taste itself. A single star sitting in a pot of simmering broth can perfume an entire kitchen.
How It Compares to Anise Seed and Fennel
Despite sharing a name and a similar flavor, star anise and anise seed come from completely unrelated plants. Star anise is the fruit of an evergreen tree native to Southeast Asia. Anise seed comes from an herb in the parsley family, originally cultivated in Egypt and the eastern Mediterranean. The two are not interchangeable in equal amounts because star anise is noticeably more bitter and more potent.
Fennel seed also belongs to a different plant family but shares that licorice character thanks to the same trans-anethole compound. The difference is in the secondary notes. Fennel leans piney and slightly camphor-like, while star anise trends herbal and woody. America’s Test Kitchen has noted that swapping one for the other changes a dish more than most cooks expect, because those background flavors shift the overall impression even when the licorice note stays constant. A minor secondary compound called p-anisaldehyde also contributes sweet, floral, almost vanilla-like notes to star anise that you won’t find in fennel.
How Cooking Changes the Flavor
Raw star anise, straight from the pod, tastes sharp and almost medicinal. Cooking mellows it dramatically. When star anise simmers in liquid or heats in oil, its flavor compounds dissolve and distribute more evenly, softening the bitterness and letting the sweetness come forward. This is why it works so well in slow-cooked broths, braised meats, and mulled drinks.
Heat also unlocks more complexity. Research on braised duck found that adding star anise to the cooking liquid didn’t just layer in licorice flavor. It actually suppressed unpleasant off-notes from fat oxidation, reducing certain harsh, greasy-smelling compounds by 30 to 40 percent. In other words, star anise doesn’t just add its own flavor. It actively cleans up the overall taste of a dish by taming the less pleasant aromas that meat produces during long cooking. Dry-toasting whole stars in a pan before adding them to a recipe intensifies the woody and herbal notes while taking some of the raw edge off the licorice.
Where You’ll Taste It
Star anise is the cornerstone spice in Vietnamese pho, where it provides that distinctive sweet, fragrant backbone to the beef broth. It’s one of the five components in Chinese five-spice powder, alongside cinnamon, cloves, Sichuan peppercorn, and fennel. You’ll also find it in Indian biryani, Thai iced tea, and European baked goods. It’s used to flavor liqueurs like absinthe, pastis, and sambuca.
On the savory side, it pairs naturally with pork, duck, and beef, especially in braises and stews where long cooking times let the flavor develop gradually. Cinnamon, ginger, and cardamom are its classic spice partners, each one amplifying a different facet of star anise’s warmth and sweetness. On the sweet side, it works beautifully with poached fruit, custards, and chocolate. Citrus is a particularly good match: the brightness of orange or grapefruit cuts through the richness of the licorice and keeps the flavor from becoming heavy.
A Note on the Toxic Lookalike
The star anise you buy for cooking is Chinese star anise (Illicium verum), which has GRAS (Generally Regarded As Safe) status in the U.S. There is a different species, Japanese star anise (Illicium anisatum), that is poisonous and has historically been used as a fish poison. The two look nearly identical, which has caused documented cases of confusion and contamination. If you’re buying whole star anise, purchase it from a reputable spice vendor rather than foraging or buying from unverified sources. The culinary variety should have a clean, sweet licorice smell. Any harsh, chemical, or turpentine-like off-notes are a red flag.