Los Angeles chef Sang Yoon is famous for doing things his way. He refuses to provide ketchup at his two Father's Office restaurants, where the burger is often cited as among the best in the nation.

Chef Sang Yoon, best known for trailblazing the gastropub movement in L.A. with Father’s Office, is among 13 of this season’s handpicked chefs competing for $100,000 for a charity of their choice.

Sang Yoon is a French-trained Korean-American chef known for his trailblazing Los Angeles gastropub Father’s Office, famous for its proprietary Office Burger. He is also the proprietor of the ...

Chef Sang Yoon, Cookin' and Bookin' Before he opened his own place (a bar and restaurant in Santa Monica, Calif., called Father's Office) Sang Yoon served up gourmet cuisine at Michael's.