Pour 10 cups (2.4 L) water into the steamer basin. Heat the Wolf steamer module at HIGH, covered with the glass lid. Whisk together eggs and sugar until light and frothy. Beat in milk and vanilla. Pour into four greased ceramic custard cups, sprinkle tops with nutmeg. Cover each tightly with aluminum foil. Place cups in perforated insert pan. After steamer has reached HIGH, carefully place insert pan in the steamer. Cover with the glass lid. Steam for 10 to 12 minutes, or until the center is slightly soft. Remove the foil and allow the custard to cool for a few minutes. Cover with plastic wrap and refrigerate for at least 2 hours. Serve chilled topped with fruit or whipped cream.
For Crème Brûlée:
Follow the directions above, steaming the custard 10 minutes or just until set. After refrigerating, sprinkle approximately 2 teaspoons (10g) sugar on each. Heat the top with a blow torch until the sugar has hardened. Serve immediately.