Longson, also one of the suppliers and manufacturers of Mayonnaise in Malaysia. Mayonnaise is often used for salad dressings as a complement to the taste and looks attractive. Mayonnaise is a magical ingredient. The beauty of mayonnaise is how two liquids come together to form a viscous, yet dense shape. Mayo is almost all oil, combined with a little egg yolk, a little acidic liquid, like lemon juice or vinegar, and often a touch of mustard. It is a thick, creamy, stable emulsion.