Boil water in a pan fitted with a fan steamer. Peel the potatoes and cut them into small pieces. Place the potatoes in the steamer. Put a lid on and let them steam over medium heat for about 8 minutes.
After add the kale on top of the potatoes and continue steaming for another 4 minutes with the lid on.
In the meantime toast the pine nuts in a dry skillet, stirring frequently until golden.
When finished steaming, remove the potatoes and kale from the steamer into another sauce pan. Add a pinch of salt. Use a potato masher to mash. If necessary add a tablespoon of the cooking water to thin it out.
Serve in a bowl and top with the pine nuts.
Smell its sweetness and enjoy!