Preheat oven to 175C.
Place a ball of dough into a egg tart mold.
Use thumbs to press the dough and spread it over the whole mold and slightly over. Make sure the sides of the mold is not thinner than the base!
Use the back of a knife to cut off the extra dough. This extra dough can be used again. If you have mastered the lining of the dough very well, you might not need this step. ;)
Poke 15 small holes on the tart pastry.
Bake for 15 minutes, low shelf in the oven. Make sure the dough is very light in color, as you will need to bake again. This is only half baked, you need not cook through.
Remove and cool. Then pipe in the cheese filing.
Place the tarts into the freezer to harden the top of the cheese filings. Then brush egg yolk on this top (egg wash).
Grill for a few minutes in the oven. You will know your tart is ready when the cheese filing rises a little. If you want a lava consistency, don't let the cheese set completely, and finish bake 2-3 minutes earlier.
Chill or serve immediately.
Decorate/Serve with your favourite fruits.
If you want to be adventurous like me, spread half a teaspoon of white sugar on top of the cheese filings and use a blow torch to caramelize this. Seems to be our family's favourite.