Arrowroot Powder makes clear, shimmering fruit gels and prevents ice crystals from forming in homemade ice cream. It can also be used as a thickener for acidic foods, such as Asian sweet and sour sauce. It is used in cooking to produce a clear, thickened sauce, such as a fruit sauce. It will not make the sauce go cloudy, like cornstarch, flour, or other starchy thickening agents would.
Arrowroot was very popular in the Victorian era, and Napoleon supposedly said the reason for the British love of arrowroot was to support the commerce of their colonies. It can be consumed in the form of biscuits, puddings, jellies, cakes, hot sauces, and also with beef tea, milk or veal broth. Kudzu arrowroot (Pueraria lobata) is used in noodles in Korean and Vietnamese cuisine. In the Victorian era it was used, boiled with a little flavouring added, as an easily digestible food for children and people with dietary restrictions. With today's greater understanding of its limited nutritional properties, it is no longer used in this way. In Burma, arrowroot tubers, which are called artarlut, are boiled or steamed and eaten with salt and oil.
The lack of gluten in arrowroot flour makes it useful as a replacement for wheat flour for those with a gluten intolerance. It is, however, relatively high in carbohydrates and low in protein (approximately 7.7% and does not provide a complete substitute for wheat flour in bread-making.