In the second Quickfire, the chefs are challenged to make an amuse-bouche that must fit on a Ritz Cracker. With a display of unexpected ingredients, the chefs must quickly find a way to incorporate three different items all onto one cracker. Two-star Michelin chef Santiago Lastra serves as guest judge. The competition heats up, and the chefs head to Alexandra Palace, where they must create dishes featuring rice for 100 guests. Cooking rice on Top Chef is risky business, and cheftestants from all around the globe must rise to the occasion to cook with this simple ingredient and showcase their culinary skills, diverse roots and international influence. Joining Padma, Tom and Gail for this challenge is Lorna Maseko, host of Top Chef South Africa.