Cream of broccoli soup with black sesame and watermelon seeds

This recipe has done the rounds with my friends, who have taken to falling back on this when they have a busy or very fun week with barely a green thing on their plates. Inspired by an Ayurvedic cookbook I’ve had for years by Amadea Morningstar, it is a real back-to-basics soup recipe, without any garlic, onion, sautéing or fuss. It is perfect for using up broccoli stalks – if I have a whole head of broccoli I favour the stalk first, then add enough florets to make up to