We all have been there - the point when boxed mac n' cheese moves from a once-in-a-while indulgence to a regular fixture in our weekday menu. This transformation was something I couldn't imagine ending up in until I became a mother of twins-one of which would happily savor mac and cheese multiple times a week, namely Annie's White Cheddar Shells. The other one, however, leans more towards rigatoni with tomato sauce.

Despite succumbing to the convenience of boxed mac n' cheese, I can't resist adding an element of refinement to it. It may also allow me to sneak in a bite or two without guilt. Persisting with some tweaks over time, I've concocted a version that adds a touch of sophistication without compromising the creamy comfort that makes macaroni so adored-the secret being fish sauce.

While fish sauce might not be your immediate go-to for amping up your mac n' cheese, using it sparingly doesn't impart a fishy taste. Instead, it amplifies the flavors, bringing a depth that enhances the cheese and makes the overall taste more intriguing. Moreover, it is following the same concept that underlies the use of Worcestershire, soy sauce, or a hint of mustard powder in staples such as meatloaf and mashed potatoes.

In my practice, I favor Megachef fish sauce for this purpose. Being relatively milder and less intense than options like Red Boat – reserved for more intense needs such as salad dressings or dipping sauces – it harmonizes perfectly with mac and cheese, where subtlety is crucial. You are aiming to augment the flavors, not overshadow them.

My usual routine involves adding a teaspoon of fish sauce to a typical 6-ounce of Annie's, mixed in with the milk and the powdered cheese. This small measure is sufficient to bring about a noticeable transformation in taste, leaving everyone guessing the secret behind it.

I don't stop at fish sauce, though. My other regular add-ins include a handful of frozen peas or edamame (added at the final stage to keep them fresh and sweet), and a generous portion of shredded Cabot cheddar to enrich the taste further. Alongside the fish sauce, these uncomplicated additions boost the dish without the need for excess butter or any advanced culinary technique.

Of course, I understand that fish sauce can be a concern, particularly concerning allergies. Traditional fish sauce, commonly made from anchovies rather than shellfish, is safe for people with shellfish allergies. Nevertheless, I always make it a point to discuss any dietary restrictions when cooking for guests. This necessary precaution ensures that everyone can relish the meal comfortably. Alternatively, soy sauce is a suitable substitute if you'd rather avoid seafood.

This little secret isn't confined to boxed mac n' cheese. It works wonders with homemade versions as well, encompassing many baked and stovetop mac n' cheese recipes. For more extensive homemade mac n' cheese batches, you can use up to 1 tablespoon of fish sauce.

Regardless of whether you are preparing boxed or homemade mac n' cheese, consider adding a few drops of fish sauce. With just a small addition of this unexpected ingredient, you can transform your customary weeknight staple into something that feels slightly more elevated, impressing even the choosiest of 5-year-olds.