Amazon offers J. Kenji López-Alt's The Food Lab: Better Home Cooking Through Science Hardcover Cookbook for $27.47. Coupon code "HOLIDAY30" cuts it to $19.23. Plus, Prime members bag free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $4.98.) That's the lowest total price we could find by $11. This 960-page cookbook from Serious Eats' López-Alt features over 1,000 full-color images. Deal ends November 29.