14If you bring a grain offering of firstfruits to the LORD, you shall offer crushed heads of new grain roasted on the fire.
15And you are to put oil and frankincense on it; it is a grain offering.
16The priest shall then burn the memorial portion of the crushed grain and the oil, together with all its frankincense, as an offering made by fire to the LORD.
— Leviticus 2:14-16