Fill a cocktail shaker halfway with ice cubes to chill your ingredients and get the beverage cold.
Add the vodka or apple-flavored spirit, green apple liqueur, and sour apple schnapps into the shaker.
Seal the shaker tightly and shake vigorously for about 15 seconds, until the mixture is well chilled and frothy.
Strain the icy mixture into a chilled highball glass, ensuring a smooth, clear layer with no ice shards.
Slowly pour a dash of grenadine around the edge of the drink or directly into the center, allowing it to sink or swirl for a layered effect that creates a red glow on the surface.
Optionally, garnish with a thin slice of green apple or a spooky cherry to enhance the visual appeal.
