Keto Loaded Baked Potato Soup

Name: Keto Loaded Baked Potato Soup
Ingredients: 1 small head cauliflower, cut into florets (about 3 cups); 1 bunch radishes, trimmed and quartered (about 1 1/4 cups); 1 tablespoon extra-virgin olive oil; Fine sea salt and freshly ground black pepper; 6 slices uncured bacon, chopped; 1 large yellow onion, chopped (about 2 cups); 2 ribs celery, chopped (about 1/2 cup); 3 cloves garlic, minced (about 1 tablespoon); 4 cups low-sodium chicken broth; 1 tablespoon unsalted butter; 4 ounces Cheddar cheese, shredded (about 1 cup); Hot sauce, optional; 2 tablespoons minced fresh chives, for serving, optional; Sour cream, for serving, optional