Line a 9x9 dish with parchment paper, set aside.

In a large pan with high sides add butter and set over medium heat.

When the butter has melted add marshmallows.

Stir with a silicone spatula until they have melted and the mixture is smooth.

Turn off the heat and stir in the peanut butter and Nutella. Keep stirring until the mixture has totally combined.

Add in the cereal and stir to combine. This step will make your arm burn but just keep stirring until combined. I like to continue to use my silicone spatula so the mixture won't stick.

Add the cereal mixture to the prepared pan and lightly press into the pan to make the top even. Don't press too hard because if you compact them too tightly they come out hard.

Drizzle the top with melted chocolate and let it harden, at least an hour, before cutting and serving.