Peel off all the White Chocolate Reeses wrappers and cut into fourths. Put parchment paper on the 9×9 pan. (This keeps the fudge from sticking to the pan.)
Put the white chocolate chips and marshmallow fluff in a big bowl. Set aside. In a pan melt the sugar, heavy cream, salt and butter on medium heat until it starts to boil. Cook for 5 minutes.
Pour the hot mixture into the bowl of chocolate chips and mix using a stand or hand held mixer until soft and smooth.
Fold in half the White Chocolate Reeses. Pour into your pan.
Sprinkle the rest of the Reeses on the top.
Put in the fridge for 3-5 hours to let it set. Hope you like it!