Line a mini-muffin tin with papers. Melt chocolate in a double boiler until just melted and smooth. Drop a spoonful of chocolate in each cup and spread up the sides of the paper: Then place a small scoop of nut butter in each cup: Then top each cup with more chocolate: I made a lot... :) Once they're all covered with chocolate, place in the freezer until they set up.
I recommend keeping the finished product in a ziploc bag in the fridge or freezer so they stay good longer. Enjoy!