1 celery stalk, trimmed, chopped
1 garlic clove, peeled and crushed
1 spring onion, trimmed, sliced
60g/2陆 canned borlotti beans, drained and rinsed
pinch dried chilli flakes
pinch stock or bouillon powder
25g/1oz tomato pur茅e
50g/2oz cooked bacon, chopped