Add the 1/2 teaspoon ground cinnamon, 1/2 teaspoon ground ginger, 1/2 teaspoon ground allspice, 1/8 teaspoon ground cloves, and 1/8 teaspoon ground nutmeg to a medium-sized bowl, then mix well.
Remove 1/2 teaspoon of the spice mixture and reserve it in a small bowl.
Add 1 3/4 cups chopped dark chocolate to a pot on the stove set to low heat.
Cook, stirring constantly until the chocolate has melted, then immediately remove the pot from the heat.
Add the melted chocolate and 1 tablespoon molasses to the medium-sized bowl containing the majority of the spice mixture, then mix well.
Divide that mixture evenly into 12 portions in a mini muffin pan lined with mini paper baking cups.
Add a small pinch of the reserved spice mixture on top of each chocolate.
Place the mini muffin pan in the fridge to let the chocolates set for at least 1 hour before serving.