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
Au jus stock to a concentrated form, (also known as "Glace de Viande") to accompany a meat dish. It is typically served with the French dip sandwich. "Jus" can also be made by extracting the juice from the original meat and combining it with another liquid e.g. red wine (thus forming a red wine "jus"). A powdered product described as "jus" is also sold, and is rubbed into the meat before cooking or added afterwards. Powdered forms generally use a combination of salt, dried onion, and sometimes sugar as primary flavoring agents. In the United States, the phrase "au jus" is often