In a medium-sized saucepan, combine the Nutella, whole milk, granulated sugar, and vanilla extract.

Heat the mixture over low heat, stirring constantly until the Nutella has completely dissolved and the mixture is smooth. Do not let it come to a boil.

Once the mixture is smooth, remove it from the heat and let it cool to room temperature.

Once the mixture has cooled, pour it into popsicle moulds.

Insert popsicle sticks into the moulds, making sure they stand upright.

Place the moulds in the freezer and let the popsicles freeze for at least 4 hours, or until they are completely solid.

To remove the popsicles from the moulds, run them under warm water for a few seconds to loosen them.

Enjoy your delicious Nutella Popsicles!