Two of the most notorious “mad scientists” in Top Chef history face-off once again, Top Chef All Stars winner Richard Blais and competitor celebrity chef Marcel Vigneron. First, Marcel challenges Richard to make a dessert featuring both a hot and cold component while Richard chooses to challenge Marcel to make one of his specialties, a burger.

• Dan Cutforth
• Jane Lipsitz
• Gail Simmons
• Curtis Stone
• Wolfgang Puck
• Magical Elves Productions
• Top Chef Duels - Season 1