Tangerine Magic: In a saucepan, whisk together the agar agar flakes, sugar, and milk. Bring the mixture to a boil over medium heat, stirring constantly until the agar agar and sugar dissolve completely. Remove from heat and let it cool slightly. Pour the mixture into a mold or serving dish. Gently fold in the tangerine segments and refrigerate for at least 1 hour until fully set.

Chocolate Bliss: In a separate saucepan, combine the milk, chopped dark chocolate, sugar, agar agar flakes, and cocoa powder. Heat over medium heat, whisking constantly until the chocolate melts and the mixture becomes smooth. Let it cool slightly before carefully pouring it over the chilled tangerine layer. Refrigerate for at least 1 hour until fully set.

Nutella Coffee Delight: In a small saucepan, heat the milk over medium heat until warm. In a mug, combine the Nutella and coffee. Pour the warm milk over the mixture and stir well until frothy.

Serve and Enjoy! Once the dessert is fully chilled, cut it into slices or scoop it into bowls. Drizzle with some of the Nutella coffee drink for a perfect finishing touch.