Ingredients:

• 1 head cauliflower, stem trimmed of leaves, florets roughly chopped (see How to Cut and Core Cauliflower)
• 1 cup chicken stock, vegetable stock (for vegetarian option), or salted water (if cooking gluten free, use water or gluten-free stock)
• 3 tablespoons sour cream
• 1 tablespoon butter
• Salt and pepper