Duchess potatoes Author: Jeroen Valkenier Prep time: 60 mins Cook time: 15 mins Total time: 1 hour 15 mins Serves: 5-6 portions Ingredients 900 gr potatoes 3 egg yolks 45 gr butter Instructions Preheat the oven to 170°C. Line a baking tray with baking paper. Pierce the potatoes several times with a knife. Sprinkle the