Roasted Cauliflower Soup

Name: Roasted Cauliflower Soup
Cook time: 3600 s
Total time: 3600 s
Yield: 4
Ingredients: 1 head of cauliflower, cubed; 1 sized onion, diced; 3 garlic cloves, minced; 4 cup vegetable broth; 1 1/2 cup heavy cream; 1 tbsp chives, chopped; truffle oil; salt and pepper