Brown & Polson Cornflour in a 250g pack is one of the British store-cupboard institutions — a finely milled white cornflour used to thicken sauces, gravies, custards, puddings, and stews. The traditional method: mix two teaspoons of cornflour with a tablespoon of cold water to make a smooth paste before adding to hot liquid, then stir until thickened. Also used in baking to lighten cakes and biscuits, and as a coating for crispy fried chicken or fish. The 250g pack is the regular household size. Brown & Polson has been on UK kitchen shelves for over 150 years.