1 head cauliflower, cut into small florets
45 ml olive oil, divided
1 whole garlic bulb
960 ml vegetable broth
30 ml truffle oil, plus more as needed
120 ml heavy cream
salt and pepper, to taste
Step 1
Preheat the oven to 200°C (400°F) and line a baking sheet with parchment paper.
Step 2
Place the cauliflower florets on the prepared baking sheet, toss with 30 ml of olive oil. Cut the top off the garlic bulb to expose the cloves, drizzle with the remaining 15 ml of olive oil, and wrap it in aluminum foil. Put the wrapped garlic bulb on the baking sheet with the cauliflower.
Step 3
Roast in the preheated oven until the cauliflower is golden brown and the garlic is soft, about 30 minutes. Let the garlic cool, then squeeze the roasted cloves from their skins.
Step 4
In a blender, combine the roasted cauliflower, garlic cloves, vegetable broth, and truffle oil. Blend until smooth. Pour the mixture into a large saucepan and bring it to a simmer for 8 to 10 minutes. Add the heavy cream and stir to combine. Season to taste with salt and pepper.
Step 5
Serve the soup in bowls and lightly drizzle with additional truffle oil, if desired.