Prepare the Dough: Mix flour, sugar, and a pinch of salt. Incorporate cold, cubed butter with fingertips until crumbly. Add an egg and mix until smooth. Form into a disk, cover, and refrigerate until cold.
Roll and Bake the Dough: Roll out the dough between parchment paper to fit a 28 cm baking tray. Chill, then bake at 190ºC (200ºC for gas ovens) for 30 minutes with weights, then 5-10 minutes without.
Make the Caramel: On low heat, dissolve sugar with a pinch of salt. Add warm fresh cream and a shot of whiskey, stirring until smooth. Incorporate butter.
Prepare the Chocolate Ganache: Heat fresh cream until it begins to boil, then pour over dark chocolate. Let sit, then mix until smooth. Add butter and honey, mixing until combined.
Assemble the Pie: Pour caramel into the baked crust, then top with chocolate ganache. Allow to cool and set before slicing.