Dough: Beat the butter mixer cream and gradually while stirring, add sugar, salt, essence and lemon zest. One by one, add eggs, any stirring of the high level of the mixer about 1-2 minutes. Mix flour and baking powder, sift them and add 2 portions to the mixture, stirring until a homogeneous dough. Spread the dough on a greased baking tray with dimensions 40-30 cm and bake in preheated oven about 25 minutes at 180 C. Syrup: After removal, while still hot, Pierce repeatedly cake with a toothpick, it syrupy pre prepared syrup and leave to cool. frosting: Prepare the glaze by mixing the contents of the bag with water and lemon juice and pour over the cake entirely or decorate it with random shapes. For this purpose, pour the glaze cone of baking paper and use it as a spray. Can be used and another glaze of your choice.