In a saucepan, add coconut milk and bring to a simmer. Add chocolate disks, mole bitters, and TABASCO® Sauce and whisk until the chocolate disks have melted. Remove from heat.
To serve, add 3/4 cup hot chocolate base to a heated mug, and add 1.5 oz Reposado Tequila or Mezcal and stir. Garnish with a sprinkling of coconut flakes and marshmallows. Leave a bottle of TABASCO® Sauce out for your guests to add more if they want it spicier.