Chicken Braised with Caramelised Onions

Lourdes Paixão is a wonderful grandmotherly figure who cooks by memory the food of her home in Minas Gérais, where most of the cuisine is hearty and earthy. She is the kind of cook who doesn’t use a chopping board - she holds vegetables with one hand and cuts them with a small knife in the other over a plastic bowl. She cooks under any circumstances, with any equipment, on any hob, and in any kitchen. One of her best dishes is this chicken dish, a cross between French onion soup and osso bu