Add the garlic and chilli flakes and cook for 1 minute, making sure the garlic doesn't burn.
Add the tinned tomatoes to the pan, and a pinch of salt and stir well. Simmer the tomatoes on a low heat for 10-15 minutes until you get a thick rich sauce.
Add the bread to the pan, then 2 ladlefuls of chicken stock (or enough almost to cover the bread) and simmer for 15-20 minutes until the bread has softened and absorbed the stock and tomato.
When the bread has started to soak up the sauce, use whisk to break down the bread and mix it into the sauce. Add more stock if needed.
When the bread has completely broken down, and you have reached a thick but wet consistency, adjust the seasoning if needed and serve with a few basil leaves on top.