Add all the other ingredients (except the walnuts) and allow to cool slightly so the ingredients don't settle and sink to the bottom of the fat bomb..
Pour into ice cube trays and refrigerate until semi set.
Once almost set, place a half walnut on top of each fat bomb.
The taste of fat bombs is incredibly personal. How sweet you like them depends on how your sweet tooth has adapted, and if you are a dark chocolate or dairy milk chocolate lover.The carbs in the fat bomb come from the walnut so you can delete these if you want to.