Ingredients:

• 2 cups (480ml) whole milk
• 1/2 cup (113g) unsalted butter, diced into tablespoon-sized pieces
• 4 large eggs, separated
• 2/3 cup (135g) granulated sugar
• 2 teaspoons vanilla extract
• 1/4 teaspoon kosher salt
• 1/8 teaspoon ground nutmeg (optional)
• 3/4 cup (90g) all-purpose flour
• Powdered sugar, for dusting, optional