1/2 oz Dark Rum (Diplomático Reserva Exclusiva)
1/2 oz Averna
1/2 oz Bénédictine
Shake without ice and then with ice. Strain into a cocktail coupe containing 2 oz of chocolate stout (Harpoon). Stir gently and garnish with 5 drops of Fee's Whiskey Barrel Bitters (sub other aromatic bitters).