Mac and cheese is not only the quintessential comfort food inextricably linked to the South and a quick and tasty meal to pull together on a busy weeknight. When it comes to leftover mac and cheese, popping it in the microwave may not be best.
According to Bon Appetit, unless from microwaveable mac and cheese, the best way to reheat mac and cheese is to do so the same way it was cooked. If cooked in an oven, preheat the oven to 375 degrees and reheat, and for stovetop, place the mac and cheese in a pot, add a little milk and reheat.
Pure Wow calls this reheating method "foolproof" and suggests placing your mac and cheese in a casserole dish, adding one tablespoon of milk per cup of mac, and mixing it as long as there is no topping. Heat the oven to 350 degrees, cover the dish with foil, heat for 20 minutes, remove the foil, and cook for 10 minutes.