'Wafers' in the Bible

unleavened bread, unleavened cakes mixed with oil, and unleavened wafers spread with oil, which you are to make from fine wheat flour.

"When you bring an offering that is, a grain offering baked in an oven it is to consist of fine flour baked into unleavened bread mixed with olive oil or of wafers made of unleavened bread and smeared with olive oil.

If someone brings it to demonstrate thanksgiving, then he is to present along with the thanksgiving offering unleavened cakes mixed with olive oil, unleavened wafers spread with olive oil, and cakes of mixed fine flour with olive oil.