2 tablespoons apple brandy (such as Calvados or Laird's)
2 tablespoons bourbon
2 tablespoons fresh apple cider
1 tablespoon fresh lemon juice
1 dash of Angostura bitters
Dried or fresh apple slice (optional)

Fill a cocktail shaker with ice. Add 1 tablespoon thyme simple syrup, apple brandy, and next 4 ingredients. Shake cocktail vigorously 10-15 times and strain into a chilled Martini glass. Garnish with apple slice, if desired.

Thyme Syrup
1/2 cup sugar
15 sprigs thyme

Bring sugar and 1/2 cup water to a boil in a small saucepan over medium heat, stirring to dissolve sugar. Remove pan from heat; add thyme sprigs and let syrup cool completely (a clear thyme flavor should come through). Discard thyme sprigs. (Leftover thyme simple syrup will keep indefinitely in the refrigerator.)

Via http://www.bonappetit.com/recipe/fall-classic