In a large bowl, mix together corn flakes and rice krispies.

In a medium heat-proof bowl, melt the chocolate over simmering water, stirring occasionally. Make sure the bottom of the bowl doesn’t touch the water. Add the orange zest into the melted chocolate and pour the chocolate over the corn flake mixture. Gently mix everything with a rubber spatula until all the cereal is coated with chocolate.

Using a large cookie scoop (or 1/4 measuring cup), scoop out the mixture and drop it on a baking sheet, lined with silicone mat or parchment paper. Let it dry for at least 2 hours, or until firm. Store in airtight container at room temperature for up to 5 days.