1 1/4 oz of Tequila
3 oz of beer
1/4 oz of Bacardi 151 rum (or overproof rum)
1 1/4 oz of amaretto almond liqueur (or almond liqueur)
Pour a shot of tequila and amaretto in seperate shot glasses. Place a very thin layer of Bacardi 151 on top of both shots, light. Shoot the tequila first, then carefully drop the amaretto into a mug of beer. Chug.