By- Nathan Desler
Guarnaschelli is the daughter of cookbook editor Maria Guarnaschelli and John Guarnaschelli. She is a graduate of Horace Mann School and graduated from Barnard College in 1991. Her culinary experience started while watching her mother test numerous recipes at home while editing cookbooks. She worked under Larry Forgione, and then at a number of restaurants in France, New York and Los Angeles, including Guy Savoy's La Butte Challet.
On April 29, 2007, she married Brandon Clark; they have one daughter, Ava.