According to Vedic civilization, unmarried girls from ten to fourteen years of age are supposed to worship either Lord Śiva or Goddess Durgā in order to get a nice husband. But the unmarried girls of Vṛndāvana were already attracted by the beauty of Kṛṣṇa. They were, however, engaged in the worship of Goddess Durgā in the beginning of the Hemanta season (just prior to the winter season). The first month of Hemanta is Agrahāyana (October-November), and at that time all the unmarried gopīs of Vṛndāvana began to worship Goddess Durgā with a vow. They first ate haviṣyānna, a kind of food prepared by boiling together mung dāl and rice without any spices or turmeric. According to Vedic injunction, this kind of food is recommended to purify the body before one enacts a ritualistic ceremony. All the unmarried gopīs in Vṛndāvana used to daily worship Goddess Kātyāyanī early in the morning after taking a bath in the river Yamunā. Kātyāyanī is another name for Goddess Durgā.
(KRSNA BOOK).

While Rukmiṇī was praying, she presented a variety of items before the deity, chief of which were water, different kinds of flames, incense, garments, garlands and various foods prepared with ghee, such as purīs and kachoris. She also offered fruits, sugarcane, betel nuts and spices. With great devotion, Rukmiṇī offered them to the deity according to the regulative principles, directed by the old brāhmaṇa ladies. After this ritualistic ceremony, the ladies offered the remnants of the food to Rukmiṇī as prasādam, which she accepted with great respect. Then Rukmiṇī offered her obeisances to the ladies and to Goddess Durgā. After the business of deity worship was finished, Rukmiṇī caught hold of the hand of one of her girlfriends in her own hand, which was decorated with a jeweled ring, and left the temple in the company of the others.
(KRSNA BOOK).

Cooked by first-class brāhmaṇas with expert knowledge and then distributed to the public, this prasāda is also a blessing from the brāhmaṇas or Vaiṣṇavas. There are four kinds of prasāda (catur-vidha). Salty, sweet, sour and pungent tastes are made with different types of spices, and the food is prepared in four divisions, called carvya, cūṣya, lehya and peya-prasāda that is chewed, prasāda that is licked, prasāda tasted with the tongue, and prasāda that is drunk. Thus there are many varieties of prasāda, prepared very nicely with grains and ghee, offered to the Deity and distributed to the brāhmaṇas and Vaiṣṇavas and then to the general public. This is the way of human society. Killing the cows and spoiling the land will not solve the problem of food. This is not civilization. Uncivilized men living in the jungle and being unqualified to produce food by agriculture and cow protection may eat animals, but a perfect human society advanced in knowledge must learn how to produce first-class food simply by agriculture and protection of cows.
(SRIMAD BHAGAVATAM------10:7:13-15-----PURPORT).

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