Instant Pot Method: Pour 2 cups of water into the liner of the Instant Pot. Set the Instant Pot to saute HIGH. Place a large glass bowl on top of the Instant Pot to create a double boiler.
Add both types of chocolate, the peanut butter and shortening to the bowl.
Stir occasionally until melted. SKIP TO STEP 5.
Microwave Method: Microwave both types of chocolate, peanut butter and shortening until smooth. Do this by microwaving for 30 second intervals, stirring in-between until smooth.
Once the chocolate is melted and smooth, stir the peanuts into the chocolate making sure to coat all peanuts evenly.
Using spoon or cookie scoop, portion the chocolate peanuts out into small clusters. Place the peanut clusters onto parchment paper to set.
Allow the peanut clusters to set completely before trying to remove. You can pop them the fridge to speed up this process.