Sandwich sauce is a different seasoning for your sandwiches. The combination of mushrooms, onions, and spices quickly turns this product into a must-have on your grocery list.
Sandwich sauce is mostly used for cold sandwiches and is not common as salad dressing. This sauce is usually made with vinegar, mayonnaise, tomato and olive oils, but its history shows us that it has evolved with many ingredients depending on its country of manufacture.
