Cream nut butter, coconut oil, maple syrup or honey, and salt together in a bowl

Pour mixture into a baking dish lined with baking paper

Melt the cacao melts and pour over the top of fudge or chop up the melts and sprinkle over top

Freeze for at least 2 hours

Remove from freezer, and remove fudge from dish by picking up the baking paper

Cut into small squares and store in freezer until needed.