Preheat your oven to 350 degrees F.

In a bowl, whisk the eggs until they are frothy, about a minute.

Add in the sugar, salt, flour, and vanilla, and whisk until blended.

In a saucepan, heat the milk over medium heat until it reaches 180 degrees F or small bubbles appear at the edges.

Gradually add a bit of the hot milk into the egg mixture, whisking constantly. Continue to add the milk slowly while whisking until everything is mixed.

Strain the mixture into a new bowl. Evenly distribute the mixture among 4 ramekins and set them in a 9x13 baking dish.

Pour 3 cups of warm water into the baking dish, surrounding the ramekins.

Bake for 40-50 minutes. Take out of the oven and carefully remove the ramekins from the water bath. Optional: Sprinkle with powdered sugar, nutmeg, or cinnamon.