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MIX 250 gram all-purpose flour with a pinch of salt and 80 gram of sugar. CUT the butter into small cubes and ADD those one at a time to the flour mixture. Keep on mixing with the flat beater attachment.
The mixture will look crumbled. ADD 1 egg yolk and 2 tablespoons of cold water. Keep on mixing until a dough ball has formed. WRAP the dough in cling film and let it rest in the refrigerator for about 1 hour.
PRE-HEAT the oven to 180 degrees celsius or 350 degrees Fahrenheit. COAT the pie form with butter. ADD a little bit of flour to the countertop and use a rolling-pin to roll out the dough. Keep enough dough aside for the hearts.
PRESS the dough into the cake pan and poke holes in the bottom using a fork.
CREATE a smooth mixture of the quark, eggs, vanilla sugar and 1 tablespoon of sugar. DIVIDE the mixture over the bottom and divide the fruit over the filling.
DIVIDE another 2 tablespoons over the fruit and create a top of hearts.
BRUSH the hearts with egg wash and BAKE the pie in the oven for about 40 minutes, or until it's beautiful golden brown. Let it cool off a bit and enjoy!