|Simple syrup||3.0cl 1.0oz|
|Lemon juice||2.0cl 0.67oz|
|Angostura bitters||Two dashes|
This drink was described by Mark Twain in a letter to his wife Olivia from London in January, 1874:
Livy my darling, I want you to be sure & remember to have, in the bathroom, when I arrive, a bottle of Scotch whisky, a lemon, some crushed sugar, & a bottle of Angostura bitters. Ever since I have been in London I have taken in a wine glass what is called a cock-tail (made with those ingredients) before breakfast, before dinner, & just before going to bed.