Taro Flavor

Taro is the starchy corm of Colocasia esculenta. A corm is the swollen base of the stem, used much like a potato. It is eaten across Asia, the Pacific islands and West Africa. In Western food, though, "taro" mostly means one thing: a lavender milk tea from a bubble tea shop.

What it tastes like

Cooked taro is mild, nutty and starchy, with a light sweetness and a dense, almost pasty texture. It is noticeably less sweet than ube.

The bubble tea version is a different thing. It is sweeter and milkier, with a vanilla note over the nuttiness, closer to a nutty vanilla milkshake than to the root. Like horchata, it is a flavor more people know from a cup than from the ingredient. A product built to taste like real cooked taro can disappoint someone expecting the drink, so decide early which one you are matching.

What gives cooked taro its nutty aroma has not been well mapped. The published work is small and shows big differences between varieties. So taro flavors are built to the description, not copied from a known compound list.

What is in a taro milk tea powder

Most taro drinks are made from an all-in-one powder. We checked the labels of two widely sold ones.¹² Both list sugar and a non-dairy creamer ahead of the taro powder. One adds a taro flavor. Both get their purple from FD&C Red 40 and Blue 1, and one also uses Red 3.

Three things in that matter if you are making one:

• The taro is a minor ingredient. Taro powder adds some body and earthiness. The taste people recognize comes mostly from sugar, creamer and flavor.
• "Non-dairy" does not mean milk-free. Both creamers contain sodium caseinate, a milk protein, and one product also lists whey and lactose. Check before you put "dairy-free" on a taro drink.
• Red 3 is on its way out. FDA revoked Red No. 3 for food in January 2025, and food makers have until January 15, 2027 to reformulate. Any taro product still relying on it needs a new color now.

Why the purple is added

Cooked taro is pale: white, cream or a faint gray-lilac, with purple fibers running through it. Mashed into paste it comes out grayish. The soft lavender of a taro drink is dye.

That is the root of the ube confusion. Ube really is purple all the way through, so when taro is sold purple too, shoppers reasonably assume the two are related. They are not even in the same plant family. Naming adds to it. In Singapore and Malaysia taro is often called yam, and the Teochew dessert orh nee, sold as "yam paste", is made from taro.

Building a taro-type product

• Build on milk, vanilla and nuts. A taro-type flavor usually sits on milky and vanilla notes with a nutty, cooked-starch body. Push the vanilla and it becomes vanilla milk. Push the nut too far and it stops reading as taro.
• Real taro must be cooked. Raw taro contains needle-shaped calcium oxalate crystals that irritate the mouth and throat. Soaking does not remove them all. If you use fresh or frozen taro, cook it fully.
• Powder or liquid is a process decision. Tea shops want an all-in-one powder. A ready-to-drink needs a liquid flavor in a stable dairy or plant base. See liquid vs powder flavor.
• Natural purples are fiddly here. Purple sweet potato, purple carrot and butterfly pea colors all shift with pH. In a milky, near-neutral drink they can drift toward blue or gray and fade over shelf life. Match the color in your actual base, and check it again at the end of shelf life.