Since the dawn of religion, worshippers have made offerings of food to gods and spirits. The Fianna do so to honor ancestors at feasts, reminding them of their former lives and strengthening their ties to kith and kin. Theurges also enact the rite as chiminage to spirits who want a taste (literally) of what the living enjoy.
The ritemaster sings or plays a tune of welcome for the spirits while investing Gnosis in the food (one point is good for a plate of food and a drink) , and rolls Wits + Rituals (difficulty of the local Gauntlet). Only one success is required to make the essence of the food as tangible to spirits in the Penumbra as it is to the Garou in the physical realm. Once its essence has been consumed, the physical food and drink loses any appealing taste or texture as well as much of its nutritional value.