Cut the apricots into slices.
Pick a round tray or an ovenproof pot.
Mix the 3 tablespoons of sugar with the pack of vanilla sugar, and spread it evenly on the bottom of the pot/tray.
Arrange the apricot slices on top of the sugar.
Turn the heat on the stove to medium, and let the sugar melt and caramelise the apricots.
Set aside.
Separate the eggs into whites and yolks.
Mix the yolks with the sugar and the pinch of salt until they cream.
Add the melted butter (not hot as it will cook the eggs), and the milk, and mix well.
Incorporate the vanilla essence.
Separately, combine the flour with the baking powder.
Combine the wet and dry ingredients, to form the dough of this apricot tart.
Whisk the egg whites until they are stiff.
Gently fold the egg whites into the dough, to air it.
Preheat the oven to 160 degrees Celsius.
Pour the batter over the caramelised apricots, and bake in the oven for around 35-40 minutes.
The tart is ready when it gets a pretty golden colour on top, and if you stick a toothpick in it, it comes out clean.
Let the tart cool down for 10 minutes, before taking it out of the tray.
Simply put a plate over the tray and turn it upside down. The tart will slide onto the plate.
Serve once it cools off.