Combine dark chocolate chips with coconut oil. Microwave 30 seconds, take it out and stir for it to really start melting. Microwave another 30 seconds and stir until the chocolate chips melt and smooth.
Line the muffin pan with paper or silicone liners. Spread about 1 - 1.5 table spoon of the melted chocolate at the bottom and on the side of the muffin cups.
Drop a tablespoon of crunchy or creamy peanut butter and do your best to smooth or level it out.
Freeze the treats in the freezer about 1-2 hours. Or keep them frozen until you’d like to have them. Leave them on the counter a few minutes before cutting or biting into it. Enjoy!