Sweet-potatoey

sweet-potatoey flavour

Source: wiktionary

The rain forest may be loaded with all kinds of edible fruits like […] the giant irregularly oblong green fruit called mbé (Anonidium mannii) that falls with a far-carrying head-crushing thud and whose orange flesh with its sweet-potatoey flavor is so rich in protein that in a real fix its ripe pasty flesh eaten salted and spiced with chilies makes a delicious substitute meal.

Source: wiktionary