Alexandra Guarnaschelli

Alexandra "Alex" Guarnaschelli (born 1972) is a chef and executive chef at New York City's Butter restaurant and was executive chef at The Darby restaurant before its closing. She appears as a television personality on the Food Network shows Chopped, Iron Chef America, All Star Family Cook-off, and The Best Thing I Ever Ate. She hosts Alex's Day Off and The Cooking Loft on Food Network and Cooking Channel. In 2012, she was crowned America's Next Iron Chef on Iron Chef America.

In 2013, Guarnaschelli's first cookbook was published. Old-School Comfort Food: The Way I Learned to Cook mixes autobiographical details with recipes that she has loved during her life as a cook adapted for the home.

Guarnaschelli is the daughter of cookbook editor Maria and John Guarnaschelli. She is a graduate of Horace Mann School in The Bronx, New York 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 Chaillot. She also worked at Daniel Boulud's eponymous restaurant and Joachim Splichal's Patina before becoming the executive chef at Butter. On April 29, 2007, she married Brandon Clark; they have one daughter, Ava.

Guarnaschelli was a competitor on The Food Network's Iron Chef America, taking on Cat Cora in the 2007 "Farmers' Market Battle." Cora won the challenge. Guarnaschelli has since appeared as a judge on the program. In 2011, she competed in the fourth season of The Next Iron Chef, where she placed as the third runner-up. She also competed on the Food Network Challenge Ultimate Thanksgiving Feast episode and lost the competition. After competing in the fourth season of The Next Iron Chef, Guarnaschelli became a sous chef to Iron Chef Geoffrey Zakarian.