When we think of thickeners, classic French cooking comes to mind with a mixture called roux. Roux involves butter and flour. The butter is melted and the flour added to the butter and then cooked until the flour loses its pasty taste. This roux is then added to soups and sauces to thicken them. Roux is a large component in Country Gravy, and Alfredo Sauce. And alongside veal stock, it is the backbone of Classic French Cuisine
It’s not so surprising that there is more than one kind of thickener in the world. Arrowroot, cornstarch, tapioca starch, potato starch, kudzo, and others can be used in various ways to thicken sauces, soups, and other mixes. Arrowroot is my favorite. It is flavorless and gives a glossy sheen to a soup or sauce.