Half sheets arrange in a greased tray. Beat eggs and add them 1/2 cup sugar, vanilla and flour with baking powder dissolved in it and stir. Pour the mixture into the tray on the sheet, and the top cover with the remaining pastry. Cut into squares and pour the melted butter. Bake in a preheated 200 ° C oven for about 20 minutes. Prepare syrup remaining sugar and 2 cups water and this hot syrup Pour cold banitsa.