Eggs beat with 1 cup sugar to graying. Add the yogurt with the dissolved soda. In a greased tray piecing crust smeared with sunflower oil and egg mixture and do so until the peel, as it ends with the egg mixture. Bake to golden. During this time the syrup is made from water, remaining sugar and vanilla. Cool banitsa pour the hot syrup. After the syrup, the banitsa may decorations - ground walnuts, coconut, chocolate sprinkles or anything you choose.