Preheat the oven to 325°F (163°C). Place four ramekins inside a large oven-safe baking dish and fill the dish with hot water until it reaches about three-quarters up the sides of the ramekins; remove the ramekins and leave the water-filled dish in the oven to preheat.
Lightly spray the ramekins with cooking spray and set them aside.
In a blender or food processor, combine 4 egg yolks, 1 egg white, 1 cup unsweetened vanilla almond milk, 1/2 cup baking stevia or erythritol, 1/2 teaspoon vanilla extract, 1/8 teaspoon ground nutmeg, 1/4 teaspoon ground cinnamon, 1/8 teaspoon sea salt, and 2 tablespoons honey. Blend on high until smooth and fully combined.
Evenly divide the custard mixture among the prepared ramekins, then carefully place the ramekins back into the preheated water-filled baking dish.
Bake for 35 to 38 minutes, or until the custard tops feel just set when lightly touched.
Switch the oven to high broil and broil the custards for 2 to 3 minutes, watching very closely, until the tops develop a light golden-brown color.
Remove the ramekins from the water bath and transfer them to a wire rack to cool slightly, then refrigerate for at least 2 hours to chill completely.
Serve chilled and enjoy.