Use non stick cooking spray to coat the inside of your slow cooker as well of as the inside of your 9 x 9" baking pan. Line pan with parchment paper and spray that too.
Add 24 oz White chocolate chips, 14 oz Sweetened condensed milk , 1 scant tablespoon Molasses, 1 teaspoon Vanilla extract, 1 teaspoon Ground ginger, ½ teaspoon Cinnamon, and ½ teaspoon Ground cloves to a well-greased slow cooker. Stir to combine
Cover and cook on high for 30 minutes
Remove lid and stir to incorporate the melted chips.
Cover and cook for another 15 minutes. Removed lid and stir again to fully combine all ingredients. If your chips are not fully melted, you may require another 15 minute melting round. My chips are generally fully melted after this round.
Continue to stir until your ingredients reach a thick, taffy-like consistency. You want to continue stirring until all ingredients are smooth and fully incorporated.
Optional step: If you want to add any mix-ins to your fudge, such as crushed cookie pieces or candy, stir them in now (note that if you add in chocolate chips or other meltables, they will melt in!)
Carefully lift the insert of your slow cooker (it will be very hot) and pour ingredients into the lined baking pan. Press any nutmeg, sprinkles, nuts, candy toppings onto the top of your fudge
Allow fudge to cool fully before slicing. This can take a few hours on a countertop or 1-2 hours in the refrigerator.