How to cook the perfect chocolate crispy cakes

In these dog days of the summer holidays, this is the perfect activity to make everybody happy. And, best of all, licking the bowl is positively encouragedChocolate crispy squares are some of the first cakes most of us learn to make – maybe the fond memories of standing on a stool to laboriously stir the bowl, cereal flying everywhere, mean these simple treats never quite lose their appeal. Or perhaps they just tick all the boxes our most basic selves demand: at once sweet, buttery and del