Islamic Interpretation of Dreams (Ibn-i Sirin):

Eating butter in a dream means enjoying one’s earnings and using them for worthwhile projects, or it could mean profits from one’s business.

It is said that eating butter in a dream means visiting the holy land. Eating butter in a dream also represents good harvest, plenitude, prosperity, good deeds, or the ease with which one handles his daily work.

(Also see Cream; Ghee)