Crostata with Jam

Prepare for the "Crostata with Jam" wheat flour, butter, sugar, egg, and fruit jam.

Mix the liquid and dry ingredients separately, then combine into a uniform mixture.

For creamy desserts, heat the mixture gently; for dough — bake until cooked through or golden brown.

Add sugar, fruit jam, lemon zest, and butter at the right moment: into the mixture, the filling, or for serving.

Allow the dessert to cool, set, or rest for a little while.

Serve in portions.