1. In a large saucepan, melt 2 Tbsp of butter in the olive oil. Add the onion and garlic and cook over moderate heat, for about 5 minutes, until softened. 2. Add the cauliflower and coriander and season with salt & pepper. Cover and cook for 5 minutes, stirring occasionally. 3. Add the stock and bring to a boil. Cover and simmer over moderate heat until cauliflower is softened; about 15 minutes. 4. Puree the soup in a blender or with an immersion blender until smooth. 5. In a medium bowl, whisk the egg with the cornstarch. Whisk in the yogurt. Whisk the mixture into the soup and bring to a boil over moderate heat, whisking constantly until slightly thickened; 2 - 3 minutes. 6. Season with salt and pepper and stir in the chopped cilantro. 7. Meanwhile, in a small skillet, melt the remaining 2 Tbsp of butter. Cook over moderate heat, swirling the pan occasionally until the butter is fragrant and starting to turn brown, about 5 minutes. 8. Ladle the cauliflower soup into individual soup bowls and drizzle the brown butter on top. Sprinkle with crushed red pepper and serve immediately. ---------------------------------------------------------------------------
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Ingredients