Induction stove on 6/9, stir until sugar is dissolved and mass starts boiling without bringing sugar crystals up to the walls of the pan. Stir and boil until mass reaches 114°C, remove heat, put 2/3 of mass into separate container and leave 1/3 in the pan on low heat (3-4/9). Put 2-3 big tablespoon scoops of peanut butter into 2/3 mix and 2 tablespoon scoops of nutella into the 1/3 mix in the pan. Add 1/4 teaspoon natural vanilla extract to both. Stir both until all butter/nutella parts have integrated into the mass. Focus on the peanutbutter mix, stir and cool down at the same time, give the nutella mix in the pan from time to time. When the peanutbutter mix starts to set, pour into form. Focus on nutella mix now, give it a bit more heat and stir until creamy then pour that on top of the peanutbutter that is already setting in the form.