1: The recipe calls for two species of Allium ( garlic and onion or leek ) , wine and oxgall ( bile from a cow 's stomach ) to be brewed in a brass vessel . 2: Harrison says the researchers are still not completely sure how it works , but they have a few ideas -- namely , that there might be several active components in the mixture that work to attack the bacterial cells on different fronts , making it very hard for them to resist ; or that by combining the ingredients and leaving them to steep in alcohol , a new , more potent bacteria-fighting molecule is created in the process . 3: Researchers say a medieval remedy made of garlic , onion , wine , bile may be able to defeat MRSA superbug .
1: two species of Allium ( garlic and onion or leek ) , wine and oxgall ( bile from a cow 's stomach 2: the ingredients 3: garlic , onion , wine , bile