Roux French cuisine, but may be lard or vegetable oil in other cuisines. The roux is used in three of the five mother sauces of classical French cooking: béchamel sauce, velouté sauce, and espagnole sauce. In Cajun cuisine, roux is made with bacon fat or oil instead of butter and cooked to a medium or dark brown color, which lends much richness of flavor, albeit less thickening power. Central European cuisine often uses lard (in its rendered form) or more recently vegetable oil instead of butter for the preparation of roux, which is called in Slovak, in Czech, in Polish, ()
Cuisine of the Western United States important in the West, and wild game is part of the cuisine. Rocky Mountain oysters are certainly a part of Western regional food served up for the delight of squeamish tourists. A growing wine industry is of great importance along the West Coast and increasingly important inland and to the north, not only in California. Along the coast, seafood is important. The evolution of California Cuisine and the influence of Alice Waters are major factors in what could be called regional cuisine of the West. The slow food and local food movements are parts of this phenomenon. The influence of