I tried baked mac-and-cheese recipes by Ina Garten, Ree Drummond, and Martha Stewart. The winner had an unexpected ingredient.

Source: Business Insider

Ina Garten, Ree Drummond, and Martha Stewart each have mac-and-cheese recipes. Getty ImagesIna Garten, Martha Stewart, and Ree Drummond all have recipes for baked mac and cheese. Stewart's recipe uses four kinds of cheese and yellow onion, while Garten's calls for tomato.