Pommes Duchesse (Duchess Potatoes) Recipe

Ingredients (8)

• 3 pounds (1.4kg) Yukon Gold potatoes, peeled and cut into 1-inch pieces (see note)
• Kosher salt and freshly ground black pepper
• 1/3 cup (80ml) heavy cream
• Pinch freshly grated nutmeg
• 6 tablespoons (90g) unsalted butter, melted
• 1 large egg plus 2 yolks, lightly beaten
• Nonstick cooking spray (for piped individual portions only)
• Melted clarified butter , for brushing (optional)