Roux Roux Roux () is flour and fat cooked together and used to thicken sauces. Roux is typically made from equal parts of flour and fat by weight. The flour is added to the melted fat or oil on the stove top, blended until smooth, and cooked to the desired level of brownness. Butter, vegetable oils, bacon drippings or lard are commonly used fats. Roux is used as a thickening agent for gravy, sauces, soups and stews. It provides the base for a dish, and other ingredients are added after the roux is complete. The fat is most often butter in
Haute cuisine and shaping "haute cuisine", but their roles in the cuisine were what differentiated it from regular French cuisine. "Haute cuisine" was characterized by French cuisine in elaborate preparations and presentations served in small and numerous courses that were produced by large and hierarchical staffs at the grand restaurants and hotels of Europe. The cuisine was very rich and opulent with decadent sauces made out of butter, cream, and flour, the basis for many typical French sauces that are still used today. The 17th century chef and writer La Varenne marked a change from cookery known in the Middle Ages, to