Preheat your oven to 350°F.
Place ramekins inside two large baking dishes or roasting pans.
In a medium bowl, whisk together the cream, milk, vanilla, egg yolks, maple syrup and salt until everything is well-combined.
Transfer the cream mixture into the five ramekins, dividing equally.
Create a water bath by pouring hot water into your baking dishes until the water is halfway up the sides of the ramekins.
Place the baking dishes in the oven and bake the custards until the edges are set and the center is slightly jiggly, about 35-40 minutes.
Carefully remove the custards from the water and allow them to cool to room room temperature. To remove them, I usually put an oven mitt on one hand and grab a spatula with the other, then I slide the spatula under a ramekin while holding it in place with the oven mitt before lifting it out.
Allow the custards to cool to room temperature, then refrigerate them overnight.