Semi-sweet Chocolate Chips - one standard size bag. If you are overly generous adding chocolate, you may use more than one bag (like a bag and a quarter.
A silicone muffin pan I used a standard size silicone muffin pan, you can use a mini cupcake size.
A jar of peanut butter
Melt 1/2 of the package of chocolate chips in the microwave or double-boiler style on the stove (with a bowl of chocolate over a boiling pot of water). I found that around 45-50 seconds in the microwave worked well.
Take a silicone muffin pan and take a tablespoon of chocolate for each muffin cup (this is based on having 12 muffin cups). Try to make sure that the chocolate coats the bottom.
If you don't have a muffin pan, then take a sheet of parchment paper and put it on top of a baking sheet. Drop the chocolate in a small round circle and then add the peanut butter and then another layer of chocolate. Freeze for 10 minutes.
Then do a layer of peanut butter in each muffin cup (I found a tablespoon will do it). Freeze for 10 minutes.
Then melt the second half of the bag of chocolate chips and take a tablespoon and coat the peanut butter coat the chocolate on top of the peanut butter in each muffin cup. Freeze for 10 minutes or so more.
Pop each peanut butter cup out of the muffin cup and enjoy!
If you are trying to carb this out, one serving size is based on two tablespoons of chocolate chips and one tablespoon of peanut butter.