Beat eggs with the sugar until it is completely dissolved. Sift the flour into a bowl, put baking soda in yogurt and add to the flour with melted butter, beaten eggs, vanilla sugar and lemon essence. Knead the dough and stay 10 minutes to rest. Roll out the dough crust, thick 4-5 mm, and its metal figurines shape cookies. Put them in the pan, greased with sunflower oil, smeared with sugar and bake at 200 ° C until golden.