Add the cranberry juice, brandy, and simple syrup to a cocktail shaker.
Use a long spoon to stir until combined.
Fill 2 rocks glasses with ice.
Pour half of the cocktail into each glass. Do not fill each glass completely.
Float 1 ounce of seltzer water on top of each cocktail and add a few cranberries to the glass.
This recipe uses regular cranberry juice, not cranberry juice cocktail.Make this a big batch cocktail! In a 2.5-quart pitcher stir together 4 1/2 cups cranberry juice, 2 1/2 cups apple brandy, 2 cups simple syrup, and 1 cup seltzer water. Pour over ice and garnish with fresh cranberries.