Kas is 4.5% by volume of alcohol . It is a type of Bitters . It is related to tango . http://fullers.co.uk/rte.asp?id=58 is the name of it's website . Cork (originally Dublin),Spain is where it originated from . The main ingredients are  butter . Pepsi manufactured Kas . Several variants of this food are Lemon,Orange,Guarana with Peach . 1978 is when it was introduced
Brown-Forman company makes Kas