Line a miniature muffin tin with muffin liners and set aside.
In a microwave safe bowl, combine chocolate chips with vegetable oil and melt in bursts of 20 seconds, stirring in between each burst for 15 seconds. Be patient in melting and make sure to stir really well in between each bursts as it's easy to burn the chocolate.
Stir in the rice crispies 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 to level the chocolate. and then let harden either at room temperature or in the fridge.
Chill in the fridge for at least 30 minutes or until completely set and enjoy!
Notes
Storage: Store in an airtight container in the fridge for up to one week. I like these best straight out of the fridge.