Ingredients

• 4 thin slices bacon, cut into small bits
• 1 white onion, finely diced
• 1 head cauliflower, broken into small florets
• 1/2 teaspoon Cajun spice, or more to taste
• Kosher salt and freshly ground black pepper
• 8 cups (2 quarts) low-sodium chicken broth
• 4 tablespoons (1/2 stick) butter
• 1/4 cup all-purpose flour
• 2 cups whole milk
• 1 cup half-and-half
• 3 cups grated Monterey Jack cheese, plus more for serving
• 1/4 cup sour cream
• 2 tablespoons minced fresh parsley, plus more for serving

Instructions

1. In a large pot, fry the bacon pieces over medium-high heat until crisp. Drain the bacon on a paper towel and set aside. Pour off the grease and return the pot to the stove.
2. Add the onions to the pot and cook over medium-high heat for 3 to 4 minutes. Add the cauliflower, sprinkle with the Cajun spice and 1/2 teaspoon black pepper and cook, stirring, until the cauliflower starts turning golden brown, another 3 to 4 minutes. Stir in the chicken broth, bring to a boil, reduce the heat to a simmer and cook for 15 minutes.
3. Use an immersion blender to puree the mixture slightly, or all the way if you prefer. (Or use a regular blender; just don't fill too full.)
4. In a separate saucepan or skillet, melt the butter. Sprinkle in the flour and whisk to form a paste. Pour in the milk, then continue cooking until it thickens. Remove from the heat and stir in the half-and-half.
5. Pour the white sauce into the soup. Turn the heat to medium high and bring back to a boil for 3 to 5 minutes. Reduce the heat to low, stirring in the cheese and sour cream until the cheese is fully melted. Stir in the parsley.
6. Taste and adjust the seasoning. Serve with a little extra cheese, a sprinkle of bacon and a sprinkle of parsley.