Leviticus 2:2; Leviticus 2:9

2 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.

9 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.