 Cauliflower cheese consists of pieces of cauliflower lightly boiled and covered with a milk-based cheese sauce, for which a mature cheese (such as cheddar) tends to be preferred.A more elaborate white sauce or cheddar cheese sauce flavoured with English mustard and nutmeg may also be used.The dish is topped with grated cheese (sometimes mixed with bread crumbs) and baked in the oven to finish it.