Sardine bolognese
By Adam Byatt From Saturday Kitchen Ingredients 2 tbsp olive oil 1 stick celery, finely chopped 1 white onion, finely chopped 1 carrot, finely chopped 1 tsp plain flour 2 tins good-quality sardines 1 garlic clove, roughly chopped 1 bay leaf 2 tsp soy sauce 2 …