Mince the chocolate and melt on low heat with the butter together in a large pot or frying pan.
Once it starts to bubble remove it from the heat to prevent burning. Mix well.
Add the marshmallows all at once. Continue mixing until there are no lumps left.
Add the corn flakes, mix once, then stop the heat.
Continue mixing until uniform. Mix from the bottom upwards in a scooping motion.
Once you finish mixing quickly pour into the pan. Use a rubber spatula to make sure there are no holes and it's packed in tightly.
Wrap and leave out at room temperature until it cools completely. Cut into your desired size.
In Step 7 you can also create rounded balls with a spoon, etc. In this case I recommend making them on the smaller side.
Story Behind this Recipe
This is something I tried making for Valentine's Day.
In Step 7, if you try cooling it in the refrigerator then attempt to cut it, they'll fall to pieces. So I recommend waiting for them to harden at room temperature. Let them naturally expand and harden for a lighter feel and taste.