Spice rub the salt for flavor and the sugar for caramelization. The simplest rub is just coarsely ground black pepper as in steak au poivre. Spice rubs can also have ingredients such as herbs, crushed garlic or oil added to make a paste. Less common ingredients can include coffee beans. Spice rubs are mainly used for preparing meats and fish. There are many different recipes for rubs and most of them are targeted towards a specific kind of food. The exact combination of spices that makes a good rub for a particular kind of food varies from region to region and culture
Chaudfroid sauce Louis-Alexandre Berthier (20 November 1753 – 1 June 1815) of France, during Berthier's time under Napoleon. Chaudfroid sauce is a culinary sauce or gravy that can be prepared as a meat-based sauce by boiling the carcasses or bones of game meats or other meats such as poultry with herbs and spices. Vegetables such as onion and carrot have also been used. After cooking, the reduced sauce mixture is strained and gelatin is then added to provide viscosity. Chaudfroid sauce is used for several meats and meat-based dishes that are served cold, including meats such as fish, poultry, rabbit, venison, partridge,