Leviticus 17:5, 6

This is so the Israelites will bring to the LORD the sacrifices they are now making in the open fields. They must bring them to the priest, that is, to the LORD, at the entrance to the tent of meeting and sacrifice them as fellowship offerings.

The priest is to splash the blood against the altar of the LORD at the entrance to the tent of meeting and burn the fat as an aroma pleasing to the LORD.