I'm no vodka fan and schnapps is sickeningly sweet, so here's my take on an appletini.
Prepare an "appletini spice" by mixing 1 pinch of clove; 1 pinch of nutmeg; 4 pinches of cinnamon; 12 pinches of turbinado sugar; and mix well.
Slice a thin cross-section (horizontal) of apple and set aside (leave apple assembled to avoid oxidizing while preparing the rest).
Add ice to a shaker.
Add 1oz apple cider.
Add 1oz honey simple syrup.
Add 2 dashes of old-fashioned bitters.
Add 0.5oz brandy or cognac.
Add 2oz gin.
Stir for 60sec and let rest for 60sec (to chill).
Strain into a martini glass.
Float the apple slice on top of the cocktail.
Lightly sprinkle the "appletini spice" on top of the apple slice.