Spanish sauce, also known as “salsa espaƱola” in Spanish, is a flavorful sauce used in Spanish cuisine to accompany meats, poultry, and vegetables. It is typically made from a base of flour, butter, and beef stock, then flavored with aromatics such as onions, garlic, and tomatoes. Other common ingredients used to enhance the flavor of the sauce include red wine, thyme, bay leaves, and black pepper. Some recipes may also call for additional ingredients such as mushrooms, carrots, or celery. The final result is a rich, savory sauce that is perfect for adding depth of flavor to a variety of dishes.