How to make
In a deep bowl, mix the sifted flour, sugar, egg yolk, salt and butter until a crumbly dough is obtained. Spread it in a greased mold and bake it at 320°F (160°C) for about 15 minutes.
Wash the rhubarb, peel it and cut it into strips. Sprinkle it with a little sugar and let it sit while you prepare the rest of the ingredients. Beat the egg whites with 1.8 oz (50 g) of sugar, and mix the cottage cheese with the remaining sugar, adding the vanilla sugar, the yolk and the starch until smooth. Carefully mix the beaten egg whites into this mixture.
Place the rhubarb on top of the baked pastry base and spread the cottage cheese mixture over it. Put the tart with rhubarb and cottage cheese to bake for 35-40 minutes again at 320°F (160°C). If necessary, cover it with aluminum foil to prevent burning.
Enjoy!