1. Put the olive oil and butter in a large Dutch oven or soup pot and warm over low heat. When the butter is melted, add the onions, garlic, celery, thyme, ½ teaspoon salt, and a few grinds of white pepper. Stir until all the ingredients glisten with oil and butter, then cover the pot and cook slowly, stirring often, for 20 minutes. 2. Toss the cauliflower into the pot and pour in the broth. Bring to a boil, reduce the heat so that the broth simmers gently, and cook, uncovered, for another 20 minutes, or until the cauliflower is very soft. 3. Puree the soup in batches in a blender or food processor; or use an immersion blender. This soup is best when it is very smooth, so if you think it needs it, push it through a strainer. (If you’ve used a standard blender, this shouldn’t be necessary.) Taste for salt and pepper. Serve plain or garnished with the topping of your choice. ---------------------------------------------------------------------------
Nutrition
Ingredients
