Prepare the Custard Base:
In a medium saucepan, whisk together the eggs, milk, sugar, and salt until well combined. If you’re using cornstarch for a thicker custard, whisk it into the milk mixture at this stage.

Cook the Custard:
Place the saucepan over medium heat and cook, stirring constantly, until the mixture thickens and coats the back of a spoon. This will take about 8-10 minutes. Be careful not to let the mixture boil, as this could cause the eggs to curdle.

Flavor with Vanilla:
Once the custard has thickened, remove the saucepan from the heat. Stir in the vanilla extract or the vanilla bean seeds for added fragrance and flavor.

Serve:
Pour the custard into individual bowls or ramekins. Let it cool slightly, then refrigerate for at least 1 hour, or until ready to serve.

Garnish:
Before serving, top each serving with a dollop of whipped cream and a light dusting of cinnamon for added flavor and elegance.