Chop all the vegetables and drain the chickpeas. Heat a little oil in a deep saucepan over a medium-high heat and fry half the chickpeas for 5-8 mins until golden and crisp. Tip into a bowl and toss with sea salt, then leave to cool until ready to serve.

Add a touch more oil, the onions, garlic, celery, carrots and a pinch of salt to the pan and fry over a medium heat for 8 mins, or until the vegetables have coloured slightly and started to soften.

Pour in the stock and add the remaining chickpeas, then bring the mixture to the boil. Cover, reduce the heat to a simmer and cook for 10-12 mins until the carrots are tender. Add the tahini and a large pinch of black pepper, then blitz the soup until smooth using a hand blender. Taste for seasoning, then ladle into bowls and top with the fried chickpeas and some black pepper just before serving.