In a medium bowl, whisk together the eggs and granulated sugar until well combined and slightly lighter in color.
Stir in the nutmeg and salt.
In a separate saucepan, gently heat the milk until it's warm but not boiling. You can also do this in the microwave.
Slowly temper the egg mixture by gradually whisking in the warm milk. This prevents the eggs from scrambling.
Stir in the vanilla extract.
Pour the mixture into individual ramekins or a larger baking dish.
Place the ramekins in a larger baking pan and carefully pour hot water into the larger pan to create a water bath (bain-marie). The water should come about halfway up the sides of the ramekins.
Bake for 40-50 minutes, or until the custard is set but still has a slight wobble in the center. The edges should be firm.
Remove the ramekins from the water bath and let them cool on a wire rack. Serve warm or chilled.
Notes
For an extra special touch, you can sprinkle a little more nutmeg on top before serving.