Matsyapurana 17.28-30

17.28

tatrāpi pūrvavatkuryād agnikāryaṃ vimatsaraḥ
ubhābhyāmapi hastābhyām āhṛtya pariveṣayet //

There too, free from envy, he should perform the fire offering as before. / Bringing [the food] with both hands, he should serve it,

Afterwards the homa "Agni Karaṇa" rite should be performed, as explained before, and then the worshipper should fetch the pot of food with both hands and put it in the dishes. At the time of putting the food in the dishes, kuśa should be held in the hand with serene mind. Several kinds of pulses, vegetables, and other victuals should also be arranged in the dishes. In offering food, curds, milk, clarified butter of cow’s milk and sugar should also be put in the dishes. Piṭṛis are exceedingly fond of flesh, so Lord Keśava has said.—28-30.

17.29

praśāntacittaḥ satataṃ darbhapāṇiraśeṣataḥ
guṇāḍhyaiḥ sūpaśākaistu nānābhakṣyairviśeṣataḥ //

with a tranquil mind at all times, holding darbha in his hand, completely [serving] / with quality-rich lentil broths and vegetables, and especially various delicacies;

17.30

annaṃ tu sadadhikṣīraṃ goghṛtaṃ śarkarānvitam
māsaṃ prīṇāti vai sarvān pitṝnityāha keśavaḥ //

food accompanied by curd, milk, cow's ghee, and sugar / pleases all the ancestors for a month; so Keśava declared.