Prepare everything you need. If the egg is small, you can use it entirely.
Put flour, cold butter, egg yolk, salt and sugar in the bowl of a food processor.
100 g butter, 1 cup flour, 1 pc egg yolk, 2 tbsp sugar, 1 pinch salt
Scroll until a soft dough is obtained. First, an oil crumb is formed, but after a minute it should gather into a lump. If this does not happen, it is permissible to add a tablespoon of cold water.
Roll out two thirds of the dough into a thin layer according to the size of the mold, considering that you need to make small sides 2-3 centimeters high. To make it easier to shift, you can work on a sheet of parchment. This will allow you to easily move the thin shortbread dough without damaging it. Put in a mold, here the diameter is 26 cm. Thickly prick with a fork.
Roll out the remaining dough and cut into long strips, you can use a pizza cutter.
Spread apricot jam on top of the dough.
1 cup apricot jam
Lay the prepared strips parallel at a distance from each other.
And then diagonally, so that a grid turns out on the surface of the pie.
Wrap the edge on the filling.
Bake in the oven at 170° for 20-25 minutes. Do not allow strong browning, the dough should remain soft. Crostata is ready. You can serve it both warm and after cooling down.