Creamy Cauliflower Soup with Parmesan Cheese

Ingredients (11)

• 1 large head of cauliflower
• 4 tablespoons butter
• 1 medium onion (finely chopped)
• 4 tablespoons all-purpose flour
• 3 cups milk
• 1 cup sour cream (or plain yogurt)
• 3 vegetable bouillon cubes (crushed, or use chicken bouillon or granules)
• Kosher salt (to taste, as needed)
• 1/4 teaspoon black pepper (or to taste)
• 1/4 cup Parmesan cheese
• Optional garnish: chopped parsley, chives, or dill