The chocolate tart symbolizes the bittersweet moments and shared secrets that bind the characters in their youthful summer.
Preheat oven to 180°C (350°F).
In a bowl, mix flour, butter, and sugar to form a dough. Press into a tart pan.
Bake crust for 15 minutes and let cool.
Melt chocolate and mix with cream and cocoa powder. Pour into cooled crust.
Chill tart in the fridge until set. Dust with powdered sugar before serving.