In a medium-sized heat-safe bowl, combine the white chocolate chips and the sweetened condensed milk. Place in the microwave and heat for 25 seconds at a time, stirring well after each interval. The chips and condensed milk mixture will be stiff half way through the heating, but will become smoother.
After the mixture is a smoother texture, add the molasses and stir until the color of the mixture is a light brown.
Add the spices and mix well.
Lightly spray a 8×8 square baking dish.
Pour fudge into the baking dish.
Evenly spread the fudge using slightly wet, clean hands.
Spread the seasonal non-pareils over the slightly damp fudge. Lightly pat down to set the non-pareils.
Refrigerate for 2 hours to overnight.
Notes
Molasses is a great ingredient to keep on hand in your pantry! It stays fresh at room temperature for quite a while, can be used in many different recipes (like this one), and you can quickly make brown sugar in a pinch.
If you plan to cut this into small squares, score the top before chilling to make it easier to cut later.