http://www.partyschool.com/cocktails/alcoholic/b.html
BULL
1 oz Rum
1 oz nature sirup
1 oz lemon juice
fill black beer
no ice
(Thanks Alain Quintana from Mexico City)
Try substituting the rum with vodka. I do not know what nature sirup is. It
may be sugar syrup.
BULL
1 oz Rum
1 oz Tripel Sec (orange liqueur)
1/3 sweet&sour mix
fill black beer
1/2 glass ice (shake)