Authenticity, in this case, involves traditional ingredients such as a round of corn on the cob, cilantro and starchy vegetables like yucca and yautia (a close cousin of taro).    From Wordnik.com.  [New York Press] Reference

Hearty home-style meals begin with specialties like mofongo (balls of mashed plantains mixed with garlic and bits of crushed pork crackling), alcapurrias (fritters made from a puree of plantains and yautia, a starchy white root related to taro, and stuffed with ground beef), and pionono (sweet plantain fritters stuffed with ground beef).    From Wordnik.com.  [Chicago Reader] Reference

Tannia, yautia, cocoyam.    From Wordnik.com.  [Chapter 31] Reference

7,000,000, next year -- with the new crops that are being grown, bearing in mind that in the case of bananas alone, for example, 700 caballerias are already under cultivation in this province, as well as the cultivation of yautia and potatoes which are already in hand as well as those for vegetables which are to be undertaken -- the province will have to produce some 12,000,000 quintals of tubers, vegetables and grains.    From Wordnik.com.  [FIDEL CASTRO SPEAKS TO GRADUATING TRACTOR OPERAT] Reference