Put the flour in a bowl, together with the salt.
Soften the cold butter. Crumble the butter and flour between your fingers. Add sugar and eggs. Knead well, not too long. Make a ball and let it cool down in the refrigerator for at least 1 hour.
Get the dough out of the refrigerator and knead a little while to soften.
Roll to a flat circle. The thickness should be so little, that you can look through it. Flour a little and fill a bakepan with the dough. Carefully push the dough to the sides and cut the remainings with a knife. Put in the refrigerator and heat the oven to 180ºC.