Leviticus 2:2, 9, 16

and 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.

And the priest shall take from the grain offering its memorial portion and burn this on the altar, a food offering with a pleasing aroma to the LORD.

And the priest shall burn as its memorial portion some of the crushed grain and some of the oil with all of its frankincense; it is a food offering to the LORD.