Pour the corn flakes into a large mixing bowl and in another bowl roughly chop dark chocolate.

Add 1tsp melted butter in chocolate and melt the chocolate in the microwave or use a double boiler. Microwave the chocolate for about 30 seconds. If using a double boiler, melt the chocolate over low heat until it's melted. Stir butter and mix.

Add the melted chocolate in corn flakes and mix cornflakes until all is coated.

Spoon the cornflake mixture into silicone or paper muffin cups. Fill and lightly press down so the flakes stick together.