Step 1: Begin by preparing your Old Fashioned glass. This type of glass is ideal because of its wide base, allowing you to stir and mix your ingredients effectively. You can chill the glass by filling it with ice for a few minutes or by placing it in the freezer while you prepare the cocktail. Step 2: In a mixing glass or directly in the Old Fashioned glass, combine 2 ounces of bourbon, ½ ounce of coffee liqueur, ¼ ounce of chocolate liqueur, and 1 teaspoon of simple syrup. Add 2 dashes of Angostura bitters to the mixture to bring in a hint of spice. Step 3: Add a few ice cubes to the glass and stir the mixture gently. Stir for about 15–20 seconds to ensure the flavors are well integrated and the cocktail is chilled. Step 4: Once the cocktail is well-mixed and chilled, strain the drink into your prepared Old Fashioned glass, over fresh ice if necessary. Step 5: Garnish the Mocha Old Fashioned with a few coffee beans for a visually appealing and aromatic touch. Alternatively, you can garnish with a twist of orange peel for a burst of citrus fragrance, or top it with a sprinkle of grated dark chocolate for an indulgent finish.