In a large bowl, pour the warm milk and sugar. Mix well until the sugar is completely dissolved, then add the vanilla extract. Stir gently and set aside.

In another bowl, place the eggs and beat them with an electric mixer or fork, without foaming too much (avoid incorporating air).
Pour the beaten eggs over the sweetened milk and mix gently for 2 minutes.
For a smoother texture, you can strain the mixture before pouring it into the molds.
Pour the mixture into individual molds (like the ones shown).
Fill each glass jar, leaving a small empty space at the top.