The phrase describes a set of instructions detailing how to prepare a condiment specifically intended for use on submarine sandwiches. This typically involves combining various ingredients such as mayonnaise, vinegar, oil, herbs, and spices to create a flavorful dressing. A potential formulation, for example, might include mayonnaise, red wine vinegar, olive oil, oregano, garlic powder, and a pinch of salt and pepper.
The availability of such a guide allows for customization and control over the final taste profile of the sandwich. Individuals can adjust the ingredients and proportions to suit their preferences, accommodating dietary restrictions or desired levels of spiciness. Historically, the development of these condiments has mirrored the evolution of sandwich culture, offering a variety of options to enhance the overall eating experience. The convenience of preparing a flavorful addition at home also contributes to cost savings compared to purchasing pre-made alternatives.