Similar to a Liquid Cocaine shot, the Four Horsemen is a 3 oz cocktail comprised of:
3/4 oz Jägermeister
3/4 oz Rumple Minze
3/4 oz Bacardi 151
3/4 oz Goldschlager
All ingredients (except the 151) are pre-chilled, combined, and served in an old-fashioned glass.
A popular serving variant involves shaking the ingredients with ice in a cocktail shaker capped with the old-fashioned glass (thus cooling it), before straining and serving. This yields a reasonably potent drink that is palatable to most drinkers (compare ethanol, Mixed drinks you come up with when you're drunk).
Final proof ~102 (51% ABV)
43.4g Alcohol
284 kcal
24.9g carbohydrates
6mg Sodium
Fat free!
Update via http://www.drinksmixer.com/
Why you would add Jose Cuervo *.* to anything and then drink it, is beyond me. But in the interest of completeness:
Four Horsemen, alternate #1
3/4 oz Jose
Cuervo gold tequila
3/4 oz Jägermeister
3/4 oz Rumple Minze
3/4 oz Bacardi 151 rum
Shaken, not stirred with ice. Pour into a small rocks glass (Old Fashioned).
Alcohol (ABV): 50% (100 proof)
Four Horsemen, alternate #2
1/4 oz Jim Beam bourbon whiskey
1/4 oz Jack Daniel's Tennessee whiskey
1/4 oz Johnnie Walker Red Label Scotch whiskey
1/4 oz Jose Cuervo Especial gold tequila
This is a shot (compare shooter), serve straight up.
Alcohol (ABV): 40% (81 proof)
Further information available at Everything Bartender.