In a small saucepan, melt together the sweetened condensed milk and butter. Heat the mixture until very hot, but not boiling.

Remove from heat and add in the white chocolate chips, let sit for about a minute then stir slowly until all of the chips have melted. If needed you can return the pan to low heat, stirring continuously until the chips are melted.

Fold the finely crushed Oreos and salt into the fudge.

Pour the fudge into an 8x8 pan, lined with parchment paper. Use a spatula to spread the mixture into an even layer.

Sprinkle the chopped Oreos, black and orange sprinkles, and the eyeball sprinkles onto the top of the fudge. Gently press the toppings down a little with your hands to ensure they stick to the fudge.

Let cool at room temperature. Once cooled, store in an airtight container at room temperature, cut just before serving.