Chop 2 or 3 white onions

Slice some white leak

Press 2 garlic cloves

Stir in skillet with 3 T butter. Cook until tender. Add a little vegetable broth and simmer then add heavy cream and simmer a bit

Pour thru colander and puree the remaining onion mixture and add to soup. Salt and pepper to taste and garnish with a drizzle of truffle oil