Preheat oven to 350 degrees. Grease a Bundt pan and set aside.
Put clementines and sugar into a food processor and process until smooth. Remove any seeds you come across.
Add butter and process until smooth.
Add eggs and process until smooth.
Add flour and baking powder, then process until mixed well.
Pour batter into the Bundt pan. Bake until golden brown, about 40minutes.
Remove from heat and cool.
Flip Bundt pan over to place cake onto serving platter.
Pour milk into a small saucepan and heat over medium until it’s steaming.
Remove from heat and add chocolate. Stir continuously until smooth. Pour over the cake.