|Apple brandy||6.0cl 2.0oz|
|Apple cider||3.0cl 1.0oz|
|Apricot liqueur||1.5cl 0.5oz|
|Lemon juice||1.5cl 0.5oz|
The Northern Spy was created by Josey Packard, a bartender at Alembic in San Francisco. It's an exceptional cocktail that lends itself to Thanksgiving and autumn evenings but works any time of year: sweet (but not overwhelmingly so) and inundated with apple flavors.
Paul from Cocktail Chronicles has a lovely writeup on the drink as well.