2400g/15oz400g/15oz cans white beansI used cannellini beans, drained and rinsed
50gkalestalks removed and finely chopped (2 cups)
1teaspoonlemon juice
½teaspoonfreshly ground black pepper
Instructions
Heat the oil in a large pan over a low heat, then add the onion, carrot and celery and cook for 5-7 minutes, or until soft and translucent but not browned. Stir in the tomato paste, garlic, rosemary, thyme, paprika, oregano, and cook, stirring, for a further 2 minutes.
Add the stock and beans to the pan and simmer for 15 minutes.
Carefully ladle ½ of the soup into a blender (or use a hand held immersion blender) to puree half of the soup.
Return the blended soup to the pot and stir in the kale and simmer for 5 minutes.
Stir in the lemon juice and season with black pepper.
Slow Cooker
Sauté the vegetables first, then combine everything, except the beans and the kale in the slow cooker and cook on low for 4-6 hours. Add the beans and heat through, then blend half of the soup, return it to the slow cooker and stir in the kale. Heat until wilted.