Oatmeal Cookie (cocktail)
An Oatmeal Cookie is an alcoholic drink named for its taste, which is reportedly similar to an oatmeal cookie. It can be served both layered and mixed, depending on the taste of the bartender. Ingredients vary, but a sample recipe is equal parts Irish cream, Goldschläger, and butterscotch schnapps.

Alternate recipes include: 
Equal parts Irish cream, butterscotch schnapps, Jägermeister, and Kahlúa.

Or three parts Irish cream, three parts butterscotch schnapps, one part Jägermeister, and one part cinnamon schnapps.