1Prepare a 12-hole muffin tray; use paper cases if desired. Melt chocolate and coconut oil together in the microwave or in a bowl over simmering water.
2Mix in the peanut butter; warm it for an additional 30 seconds in the microwave if lumpy.
3Fold in the rice krispies and oats.
4Scoop the mixture into the muffin tray.
5Set in the fridge for 1 hour.
6Store in an airtight container for 2-3 days or freeze in ziplock bags for up to 3 months.