Leviticus 6:15-16

15and the priest must take up with his hand some of the choice wheat flour of the grain offering and some of its olive oil, and all of the frankincense that is on the grain offering, and he must offer its memorial portion up in smoke on the altar as a soothing aroma to the Lord.

16Aaron and his sons are to eat what is left over from it. It must be eaten unleavened in a holy place; they are to eat it in the courtyard of the Meeting Tent.