Apples, whiskey, and cinnamon. Any of those flavors can evoke the autumn season. Combine them into a drink, and you'll fall (pun intended) for the result. You don't hear the phrase "how about them apples" much anymore (to my non-American readers -- the expression means "what do you think about that?"), but as Matt Damon shows in this scene from Good Will Hunting, sometimes it really hits the right note.
1.5 ounces bourbon
.75 ounces apple brandy or applejack (Laird's makes both)
Juice from 1/8 lemon
.5 ounces super simple syrup
2 dashes cinnamon
Combine in a shaker with ice, shake with Will's swagger, and strain into a chilled glass. Apple slice and/or nutmeg garnish optional.
Apple brandy is similar to, but not the same as, applejack. All you have to do is compare apples to apples. Like a Diamondback, you can use either spirit in an American Apple. If you prefer apple brandy try a cocktail such as a Widow's Kiss, and if you prefer applejack try a cocktail such as a Jersey Girl. Bourbon is legally an American spirit, but if you don't have any, rye works well.
So how about them apples?