Combine the eggs and milk and whisk to combine. Add the vanilla and maple; whisk until the maple has dissolved.
Add ramekins to a heat proof dish and add hot water to come halfway up the sides of the ramekins. Bake at 180 degrees C for 20 - 30 minutes. They should be still slightly wobbly in the middle. Allow to cool and serve.
Suitable for babies 12 months plus. Omit the maple syrup for younger babies.