Leviticus 3:4-5

ASV(i) 4 and the two kidneys, and the fat that is on them, which is by the loins, and the caul upon the liver, with the kidneys, shall he take away. 5 And Aaron's sons shall burn it on the altar upon the burnt-offering, which is upon the wood that is on the fire: it is an offering made by fire, of a sweet savor unto Jehovah.