Melt the chocolate over a double boiler, adding the maple syrup and coconut oil. Once it has become a liquid, taste and add a sprinkle of stevia if you want it sweeter.
Spoon about 1 teaspoon of the melted chocolate into mini cupcake liners, using the back of the spoon to push it up the sides of the liners slightly.
Place pan in the freezer for 30 minutes.
Remove the tin from the freezer and scoop about ½ teaspoon of almond butter into the bottom of each chocolate cup. Place back in the freezer for another 10 minutes.
Once chilled, top each of the almond butter cups with the remaining chocolate and sprinkle with salt. Place the cupcake tin back in the freezer for at least 1 hour.
Store the almond butter cups in the freezer, removing 5 minutes prior to serving.