Santa's Old Fashioned

2 oz Breckenridge Distillery Port Cask Finished Bourbon
1/2 oz Strongwater Espresso Old Fashioned Syrup
6 dashes Strongwater Cacao Bitters
1/2 oz Homemade Chocolate Syrup (1/2 oz cacao + 1/2 oz water)

For garnish:
Espresso Mouse (1 tbsp instant coffee, 1 tbsp sugar, 1/4 cup water, whisk to texture)
Biscotti cookie