Cauliflower is a type of vegetable that belongs to the Brassicaceae family. It is a cruciferous vegetable that resembles a white, fluffy flower in appearance. Cauliflower is a good source of vitamins and minerals, including vitamin C, vitamin K, and folate. It can be steamed, boiled, roasted, or grilled, and is often used as a substitute for rice or potatoes in low-carb diets. Cauliflower can also be fermented to make sauerkraut or kimchi.