To a cocktail shaker, add 1½ ounces of Bourbon, ½ ounce of Coffee Liqueur, ½ ounce of heavy cream, and ½ ounce of Orgeat.
Dry shake the ingredients for about 15 seconds or until everything is frothy.
Add ice and shake the mixture again until well chilled.
Strain into a fresh Collins glass.
Slowly pour in the club soda until the mixture is about 1 inch from the top of the Collins glass. Do not stir.
After about 30 seconds, pour in another ounce of soda until the froth rises above the glass.