Yuca bread is made from the Yuca purée (or mash). A yuca mash is mixed into the dough, giving it a silky texture. This results in very soft, light and smooth tasting bread. Although the yuca root is starchy and sticky, the bread isn’t. It’s fluffy on the outside and light on the inside.
Yuca (a.k.a. Cassava, Manioc or Mandioca) is a versatile root (a tuber) that is found in both the fresh or frozen sections of large grocery stores. It is a white tuber with a thick, waxy skin. The plant is native to Brazil but has been adopted by cultures around the globe from Thailand to Costa Rica.
Yuca when dried to a powdery (or pearly) extract, is called tapioca. Also try those recipes here using tapioca flour (or starch).