After reviewing all of the options of cake, exactly according to GOST not found! First and main, but little-known secret - the inside of the Potato should be light. It was then that she fully justifies its name. But for many years these cakes are made with cocoa, for a very prosaic reason - to hide poor quality, burnt biscuit. And secret number two - these brownies inside should be structured and not be a smooth homogeneous mass (which is obtained when a mixture scroll through a meat grinder). It was then they are much more palatable. And the good thing is that for us, these rules may not be easy, as the biscuit we bake ourselves. Source: Irina (chadeyka) with LJ.