Roasted cauliflower soup is a perfect soup on a chilly day. It’s made by roasting cauliflower until tender and lightly browned, then blending it with broth and other simple ingredients until creamy.
Table of Contents
Roasted Cauliflower Soup Recipe
Key Ingredients
Cauliflower: Roasting gives cauliflower a deeper, slightly sweet and nutty flavor. I tried to boil or even steam cauliflower before; it stays much milder and can make the soup taste a little watery.
Garlic: Roasting whole garlic cloves makes them soft, sweet, and mellow instead of sharp. Once cooled, I squeeze the garlic from the skins and stir the soft paste right into the soup.
Heavy cream: Adding a little heavy cream at the end makes the soup smooth, rich, and silky. You can leave it out, but the soup won’t be quite as creamy or comforting.
Fresh thyme adds a light, earthy, herby flavor that works really well with roasted cauliflower. Dried thyme also works, but fresh thyme gives the soup a brighter flavor and aroma.
Tips to Make It Perfect
Roast until the cauliflower actually browns: Don’t stop when the cauliflower is just lightly golden. Roast it until the edges are deeply browned because that extra caramelization gives the soup much more flavor.
Blend hot soup carefully: Hot soup can expand quickly in a blender. I only fill the blender halfway, blend in batches, and leave the lid slightly vented with a towel over the top.
Add the cream after blending: Stir in the heavy cream at the end instead of blending it for too long. This keeps the soup smooth and creamy without making the texture feel heavy or overworked.
This is my easy recipe for Roasted Cauliflower Soup:
Roasted Cauliflower Soup
A creamy, velvety soup made from deeply roasted cauliflower, garlic, and onion. The roasting brings out a natural sweetness that makes this taste far richer than the simple ingredient list suggests.
Ingredients
- 1 large headcauliflower (cut into florets)
- 1 mediumyellow onion (quartered)
- 5 clovesgarlic (unpeeled)
- 3 tablespoonsolive oil
- ¾ teaspoonsalt
- ½ teaspoonblack pepper
- 4 cupsvegetable broth
- ½ cupheavy cream
- 1 tablespoonfresh thyme leaves (plus more for garnish)
Instructions
- 1Preheat the oven to 425°F (220°C).
- 2Toss the cauliflower florets, onion, and garlic cloves with the olive oil, salt, and pepper on a large baking sheet. Roast for 30 to 35 minutes, stirring once, until deeply golden and caramelized at the edges.
- 3Let the garlic cool slightly, then squeeze the softened cloves out of their skins.
- 4Transfer the roasted vegetables to a large pot. Add the vegetable broth and thyme. Bring to a simmer and cook for 10 minutes.
- 5Use an immersion blender to puree the soup until smooth, or blend in batches in a countertop blender.
- 6Stir in the heavy cream and heat through. Taste and adjust salt.
- 7Ladle into bowls and garnish with fresh thyme.
Nutrition per serving
📌 Notes
- Roast the cauliflower until it actually browns. Pale, steamed-looking florets won't give the soup the same depth of flavor.
- Roasting the garlic whole and unpeeled keeps it from burning while it still turns soft and sweet.
- Blend in small batches if using a countertop blender, and vent the lid to let steam escape safely.
- For a dairy-free version, swap the heavy cream for full-fat coconut milk.
How to Pair
Roasted cauliflower soup has a creamy texture, nutty sweetness, and gentle savory flavor. You’ll need to pair it with crisp, tangy, or hearty sides to balance its smooth consistency.
- Add a lemony arugula salad, apple walnut salad, or roasted vegetables for a fresh contrast.
- Serve it with grilled cheese, a turkey sandwich, or a ham and Swiss panini for a satisfying lunch.
- Pair it with garlic bread, toasted sourdough, or buttery croutons for extra crunch.
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