Host Marc Summers is shakin' and bakin' as he takes a trip to Lender's bagels, stops in for some Sara Lee pound cake and bites into some Baked Cheetos at Frito Lay. We'll also learn about the tiny but important ingredient in most baked goods: yeast. He'll also check out another unusual baked cheese snack called Just the Cheese and find out what's inside the classic candy called Boston Baked beans.