I made marinara sauces using 4 celebrity chefs' recipes, and the best had an unexpected secret ingredient

Tech Insider
Bowl of marinara sauce with circular picture of Ina Garten next to it; Bowl of marinara with basil and circular picture of Alex Guarnaschelli next to it
I compared recipes from four different celebrity chefs including Tyler Florence, Giada De Laurentiis, and Ina Garten.

Paige Bennett, Bryan Bedder/Getty Images; Paige Bennett, Nathan Congleton/Getty Images

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