Creamy Roasted Cauliflower Soup with Crispy Chickpeas

This is the soup I make when I want something cosy that still properly fills me up. The secret is silken tofu blended in with the roasted cauliflower and leek, so it turns velvety and creamy and you get a good hit of plant protein too. Then there are the toppings: crunchy spiced chickpeas and crispy roasted cauliflower leaves. They're honestly the best bit, so don't throw those leaves away!