Step 1In a cocktail shaker, combine the horchata cream, tequila, rum, syrup and bitters.
Step 2Add crushed ice, cover and shake until well chilled, about 15 seconds.
Step 3Strain into a chilled Collins glass and fill with more crushed ice.
Step 4Float the sherry on top of the cocktail, then top with a scoop of crushed ice so it’s mounded slightly over the the rim.
Step 5Stand a mint spring in the ice, then stab a cherry with a cocktail toothpick and lay it over the rim.
Step 6Grate a light dusting of fresh nutmeg over the cocktail to serve.