cauliflower soup recipe

Ingredients 2 tablespoons olive oil 1 onion, chopped 2 cloves garlic, minced 1 head cauliflower, chopped into florets 4 cups vegetable broth (or chicken broth) 1 cup milk (or cream for a richer soup) Salt and pepper to taste Optional: 1/4 teaspoon ground nutmeg Fresh chives or parsley for garnish