Preheat oven to 350 degrees Fahrenheit.

Start by mixing the melted butter, graham cracker crumbs and rice crisp cereal.

Pour into a prepared 9x9 pan.

Distribute evenly and press down with a spoon to compact together.

Place the chocolate hazelnut spread on top without spreading.

Bake for 10 minutes.

Once finished, leave the oven set at 350 for the cheesecake.

Spread the chocolate hazelnut spread evenly over the crust and set aside.

To start the filling, place the cream cheese and sugar into a mixing bowl.

Beat until smooth and creamy.

Add in the eggs and vanilla extract.

Once well combined, add in the marshmallow fluff and mix.

Continue with adding in the chocolate hazelnut spread and rice crisp cereal.

Mix until well combined and there are no visible pale streaks.

Pour over the crust and spread evenly.

Bake for 20 minutes.

Once the 20 minutes are up, without opening the oven door, reduce the heat to 200 degrees and bake for an additional 30 minutes.

Once finished baking, turn the oven off leaving the cheesecake inside for 10 minutes.

Remove and allow the cheesecake to come to room temperature.

Once the cheesecake has reached room temperature, start the topping.

Start by placing the chocolate chips and ½ cup of the heavy whipping cream in a microwave safe container.

Microwave for 30 seconds-1 minute and mix until smooth.

Add into a mixing bowl and add the chocolate hazelnut spread.

Whisk together until well combined.

Add in the rice crisp cereal and mix until fully incorporated.

Once finished, pour 3/4 of the mixture on top of the cheesecake.

Spread evenly and set aside.

With the remaining 1/4 of the chocolate mixture, add in the remaining 1 cup heavy whipping cream.

Using a hand mixer, beat the mixture until stiff peaks form.

Place the whipped topping into a piping bag with the tip of your choice and place 16 dollops onto the cheesecake.

Cover the cheesecake and place in the refrigerator for at least 3 hours.

Once chilled, take out and cut into 16 squares.

Serve with a Ferrero Rocher on top.