Ingredients

• 1 head cauliflower
• 1 tablespoon olive oil, or more as needed
• 4 medium (blank)s carrots, diced
• 4 stalks celery, diced
• 1 small yellow onion, diced
• 2 cloves garlic, finely diced
• 4 cups chicken broth
• ¼ cup butter
• ¼ cup all-purpose flour
• ½ teaspoon salt, or to taste
• 1 pinch ground black pepper to taste
• 3 cups milk, at room temperature
• 12 ounces freshly shredded sharp Cheddar cheese, or more to taste