If you haven't done so already, prepare the <a href="https://detoxinista.com/2012/08/sweetened-condensed-coconut-milk/">sweetened condensed coconut milk</a>, using extra honey if desired for this fudge. (I used 1/2 cup instead of 1/4 cup for mine.) Allow the coconut milk to reduce until it's very thick, then measure out 1/2 cup and save the rest for another use.
In the same saucepan, melt together the 1/2 cup condensed milk, chocolate chunks, and coconut oil until smooth.
Pour into an 8"x8" baking pan, lined with parchment paper for easy removal, and sprinkle in the 1 cup of walnuts or pecans, if desired. Place the pan in the fridge or freezer to set for at least 4 hours.
Slice and serve this fudge chilled for best texture.