WIKI: Queimada has origins in the Pagan festivals of Galicia. It is a punch made from Galician aguardiente (Orujo Gallego) - a spirit distilled from wine and flavoured with herbs or coffee, plus sugar, lemon peel, coffee beans and cinnamon.
Traditionally while preparing the punch a spell or incantation is recited, so that special powers are conferred to the queimada and those drinking it. Then the queimada is set alight, and slowly burns as more brandy is added.
Mention of queimada is found in Celtic, Roman, Visigothic, and Arabic literature. There is also evidence of the queimada tradition in the eleventh or twelfth century, around the time of the construction of Cathedral of Santiago de Compostela.
Here is the English version of the Galician incantation (which you can find on the Wiki page -
http://en.wikipedia.org/wiki/Queimada)
Incantation
Owls, white-owls, toads and witches.
Demons, goblins and devils,
spirits of the misty vales.
Crows, salamanders and mages,
charms of the medics.
Rotten pierced canes,
home of worms and vermins.
Wisps of the Holy Company,
evil eye, black witchcraft,
scent of the dead, thunders and lightnings.
Howl of the dog, omen the death,
maws of the satyr and foot of the rabbit.
Sinful tongue of the bad woman
married to an old man.
Satan and Beelzebub's Inferno,
fire of the burning corpses,
mutilated bodies of the indecent ones,
farts of the arses of doom,
bellow of the enraged sea.
Useless belly of the unmarried woman,
speech 0f the cats in heat,
dirty turf of the wicked born goat.
With this bellows I will pump
the flames of this fire
which looks like from Hell,
and witches will flee,
straddling their brooms,
going to bathe in the beach
of the thick sands.
Hear! Hear the roars
of those that cannot
stop burning in the firewater,
getting so that purified.
And when this beverage
goes down our throats,
we will get free of the evil
of our soul and of any charm.
Forces of air, earth, sea and fire,
to you I make this call:
if it's truth that you have more power
than human people,
here and now, make the spirits
of the friends who are outside,
take part with us in this Queimada.