Leviticus 7:9-13

9Likewise, every grain offering that is baked in an oven or cooked in a pan1 or on a griddle2 belongs to the priest who presents it, 10and every grain offering, whether dry or mixed with oil, belongs equally to all the sons of Aaron.

11Now this is the law of the peace offering that one may present to the LORD: 12If he offers it in thanksgiving, then along with the sacrifice of thanksgiving he shall offer unleavened cakes mixed with olive oil, unleavened wafers coated with oil, and well-kneaded cakes of fine flour mixed with oil.

13Along with his peace offering of thanksgiving he is to present an offering with cakes of leavened bread.