sentences:  Their culinary empire has expanded to 10 restaurants in New York, 4 restaurants in Las Vegas, 3 restaurants in Los Angeles, 2 restaurants in Singapore, 1 Italian market in Chicago, 1 Italian market in Boston, and two restaurants in Hong Kong.Bastianich has co-authored two award-winning books on Italian wine, and his memoir, "Restaurant Man", became a "New York Times" Best Seller within a week of its release in May 2012.Bastianich was a judge on the American "MasterChef" series broadcast by Fox until it took too much of his time, and "MasterChef Junior" until he was replaced on both series by Christina Tosi in the spring of 2015 after he exited the franchise in November 2014.