First, prepare the shortcrust pastry. To do this, sift the flour into a large, deep bowl. Add pieces of cold butter, salt, and sugar. Rub the butter and dry ingredients thoroughly until crumbs form.
Add the chicken egg to the flour crumbs. Mix the dough thoroughly.
Knead the dough until it becomes a plastic mass. Form a ball out of the dough.
Wrap the dough in cling film and refrigerate for 30 minutes.
Meanwhile, prepare the filling. Place the cottage cheese in a deep bowl.
Add sour cream, egg and sugar to the cottage cheese. Beat all ingredients until smooth. It is best to use a mixer or blender, so the filling will be more airy and creamy.
Grate the zest of half a lemon and add to the cream. Stir.
Roll out the chilled shortcrust pastry and place it in a baking pan, forming the sides. Make multiple punctures in the dough with a fork.
Place the filling and smooth it out with a spatula.
Place the vatrushka in the oven to bake for 40 minutes. Cool the finished vatrushka a little and remove it from the mold.
The shortbread cheesecake is ready. Enjoy your meal!