Пирог "Небо" тает во рту

Recipe:
Flour 230g
Vanilla sugar 20 g
Sugar 50 g
Butter 120 g
Yolks 2 pcs
Water 1 tbsp
Cream:
Egg 1 pc
Butter 130 g
Sugar 150 g
Any starch 2 tbsp
Milk 250 ml
Jam or berries
Egg whites 2 pcs with sugar 50 g
Lemon juice 1 tsp