In a microwave melt your chocolate. I melt mine at 30 second intervals on 70% power. Stir. Continue melting until it is completely melted. Add desired amount of sweetener. Whisk in.
Pour the melted chocolate onto a 9x13 sheet pan lined with parchment paper.
If your almond or peanut butter is thick, place in the microwave for 15-30 seconds. Dollop little bits of the almond butter on top of the chocolate like in the picture.
With a butter knife, swirl the almond butter around to make a pretty design.
Freeze until solid. Break into small chunks. Store in the fridge or freezer.