Recipes for Mixed Drinks by Hugo R. Ensslin (1917, p.12) — Ensslin 1917

1 cubeice — Cube of Icebase
1 drinkIrish whiskey — Irish Whiskeybase
1 pieceOrange peel — Orange Peelgarnish
2 dashesBenedictine modifier
2 dashesFrench vermouth — French Vermouthmodifier
  1. Build in an old fashioned cocktail glass over a cube of ice.
  2. Serve with a small barspoon in the glass.

Garnish: Orange peel

Ice: Cube of ice

This matters because Ensslin preserves a spirit-forward Irish branch built in old-fashioned service rather than as a fully chilled stemmed cocktail.

The direct glass build and serving spoon matter; this is closer to an old-fashioned service grammar than a standard strained aromatic cocktail.

See also: Old-Fashioned Cocktail, Bobby Burns Cocktail