In cooking, "chile con queso" means chilli peppers combined with which ingredient?

Chile con queso (Spanish for "chile with cheese"), sometimes called simply queso, is an appetizer or side dish of melted cheese, or more usually, processed cheese such as Velveeta, and chilli peppers, typically served in Tex-Mex restaurants as a dip for tortilla chips.

Chile con queso (also spelled chili con queso) is a part of Tex-Mex (an American regional cuisine that derives from the culinary creations of the Tejano people of Texas) and Southwestern cuisine, originating in the northern Mexican state of Chihuahua.

Chile con queso is a smooth, creamy sauce, used for dipping, that is made from a blend of melted cheeses (often Velveeta or another processed cheese, Monterey Jack or cream cheese), cream, and chili peppers. Many restaurants serve chile con queso with such added ingredients as, black beans, guacamole, and ground beef or pork. It's a warm dish heated to a desired temperature and can be eaten with tortillas, tortilla chips, or pita chips. It can also be used as a condiment on fajitas, tacos, enchiladas, migas, quesadillas or any other Tex-Mex dish.

While Tex-Mex restaurants often offer chips and salsa free of charge, queso is usually offered for an additional charge. Usually it is white or yellow in color.

Although chile con queso is commonly called "queso", it should not be confused with "cheese dip", which is specifically cheese without the peppers.