Make a batter from the ingredients. Place the dough on a greased baking sheet and smooth out. Place a piece of aluminum household foil that has been folded over several times in front of the dough. Bake for about 20 minutes at 175-200 (preheated).
Sift the icing sugar, stir with the lemon juice until smooth, so that a thick mass is formed, brush the cooled cake with it.