The two crossword solutions for the term POI INGREDIENT are TARO and EDDO. TARO is a tropical plant native to Southeast Asia, the Caribbean, and parts of Africa. It is a starchy root vegetable that is often used in poi, a traditional Hawaiian dish made from mashed TARO root. EDDO is another root vegetable, similar to TARO, that is also used in poi. It is native to East and Southeast Asia, and is also known as yamaimo or Japanese mountain yam.