Add the corn flakes to a large zip-top bag, seal the bag and crush the cereal into small pieces.
Add the peanut butter and honey or maple syrup to a large bowl and mix together to combine. Add the crushed corn flakes to the bowl and mix again to fully combine.
Transfer the mixture to a loaf pan lined with parchment paper, and press the cereal down into the pan to create an even layer. Place in the freezer to harden for at least 1 hour.
Remove the pan from the freezer and carefully lift the corn flake mixture out of the pan. Place on a cutting board and cut into 12 bars.
Melt the chocolate chips and coconut oil together, whisk to combine, and then dip each bar into the melted chocolate to completely coat. Remove the bar from the chocolate and set on a parchment-lined plate. Repeat this process with all 12 butterfingers until all are coated in chocolate.
Transfer the butterfingers to the freezer for about 10 minutes, or until the chocolate has hardened. Then, enjoy right away or store in an airtight container in the freezer for up to 3 months (if they last that long!).