The Sir Walter (aka Swalter cocktail) first appeared in Harry MacElhone’s 1927 edition of Barflies and Cocktails and then is seen again in the 1930 edition of The Savoy Cocktail Book. It has not been confirmed that the drink was named after Sir Walter Scott, but given that bartender, Harry MacElhone was a Scotsman from Dundee, it can be assumed the drink was named in honor of him.
Add all the ingredients into a cocktail shaker with ice and shake for 20-30 seconds or until chilled. Strain into a cocktail glass and serve. Enjoy!