In a cocktail shaker filled with ice, pour the four liqueurs.
Strain into a shot glass.
Serve and enjoy!
Buttershots, Baileys, and Goldschläger are the most commonly used brands for the three liqueurs.
Jägermeister is not in every oatmeal cookie shot, so it's okay if you don't have it in stock. Simply make the drink without it.
The oatmeal cookie can also be served on the rocks in an old-fashioned glass. Garnish it with raisins on a cocktail pick and enjoy it slowly rather than shooting it.
Some oatmeal cookie recipes call for an equal pour of the butterscotch, cream, and cinnamon liqueurs. For the average shot glass, you will want to measure out between 1/3- and 1/2-ounce of each.
Give your shot a hint of orange and skip the cinnamon schnapps and Jägermeister. Any orange liqueur works, though Grand Marnier is used most often. For this version, simply shake equal parts orange liqueur, butterscotch schnapps, and Irish cream and strain it into a shot glass.
The oatmeal raisin cookie adds rum—often 151-proof, though any rum will do—and a coffee liqueur, such as Kahlua. To make it, shake equal parts (about 1/2-ounce each) Jägermeister, cinnamon schnapps, rum, coffee liqueur, and Irish cream with ice and strain into an old-fashioned glass. The volume will be too much to fit into the average shot glass, though you can divide it into two shots.