Preheat oven to 190 °C / 375 F. Butter a small baking pan (11 x 7 inch- 28cm x 18cm).
Mix the eggs, granulated sugar, vanilla extract and salt in a bowl.
Add the milk and the flour little by little, mixing the batter.
Pour the mix into the buttered pan, and place it into the preheated ( 190 °C / 375 F) oven.
Bake it on 190 °C / 375 F for 10 minutes, and for another 40 minutes on 170 °C / 340 F, until the top is golden brown
Serve it as it is, cut into squares, or with some apricot (or any other) preserves.