Line a miniature muffin pan with muffin liners and set aside.
In a microwave-safe bowl, combine the chocolate and peanut butter chips with vegetable oil and melt in the microwave in bursts of 20 seconds, stirring for 15 seconds in between each burst. Be patient and make sure to stir really well in between each bursts as it's easy to burn the chocolate.
Stir in the peanuts until well coated.
Using a cookie scoop, scoop the mixture into the prepared muffin tin. Tap the muffin pan a few times on the table.
Spoon any extra leftover chocolate over the top and chill in the fridge at least thirty minutes or until completely set and enjoy!
Notes
Storage: Store in an airtight container in the fridge for up to one week.