Preheat the oven to 350°F.

1. Beat the eggs with a whisk.

2. Boil the milk with the vanilla pod split (lengthwise).

3. Meanwhile, in a bowl, mix the cornstarch with the sugar.

4. Add the beaten eggs and remove the vanilla pod from the milk, then mix well.

5. Cook over low heat, stirring constantly, for 1 to 2 minutes.

6. Line a previously buttered tart plate with the pastry and fill with the vanilla mixture.

7. Bake for 30 to 40 minutes. Let cool completely before serving.