Leviticus 2:2-7

2and bring it to Aaron's sons the priests. And he shall take from it a handful of the fine flour and oil, with all of its frankincense, and the priest shall burn this as its memorial portion on the altar, a food offering with a pleasing aroma to the Lord.

3But the rest of the grain offering shall be for Aaron and his sons; it is a most holy part of the Lord's food offerings.

4"When you bring a grain offering baked in the oven as an offering, it shall be unleavened loaves of fine flour mixed with oil or unleavened wafers smeared with oil.

5And if your offering is a grain offering baked on a griddle, it shall be of fine flour unleavened, mixed with oil.

6You shall break it in pieces and pour oil on it; it is a grain offering.

7And if your offering is a grain offering cooked in a pan, it shall be made of fine flour with oil.