Leviticus 7:11-15

“And this is the law of the sacrifice of peace offerings that one may offer to the LORD. If he offers it for a thanksgiving, then he shall offer with the thanksgiving sacrifice unleavened loaves mixed with oil, unleavened wafers smeared with oil, and loaves of fine flour well mixed with oil. With the sacrifice of his peace offerings for thanksgiving he shall bring his offering with loaves of leavened bread. And from it he shall offer one loaf from each offering, as a gift to the LORD. It shall belong to the priest who throws the blood of the peace offerings. And the flesh of the sacrifice of his peace offerings for thanksgiving shall be eaten on the day of his offering. He shall not leave any of it until the morning.