I don't think so. It is a compilation from Bon Appetit...
I looked for the gratin recipe I mentioned and found it on Epi. I randomly picked a few others and found them too. If there are exclusive recipes, the advertisment doesn't make note of it anywhere.
I also have the Gourmet cookbook and like to do the same as you in looking at the reviews online.
Here's what the advertisement from Epi says...
"Bon Appétit has been America's favorite food and entertaining magazine for decades, celebrating the culinary experience with recipes that have made cooking both a pleasure and a triumph for generations of home cooks.
Now, for the first time, The Bon Appétit Cookbook brings together more than 1,200 of the magazine's all-time, best-loved recipes for every meal and occasion. These recipes represent the very best of the magazine's sophisticated, foolproof style: easy-to-make dishes that incorporate a variety of regional and international influences—recipes that are delicious the first time out. Like Bon Appétit itself, The Bon Appétit Cookbook is, as Editor in Chief Barbara Fairchild puts it, "approachable, relevant, and fun." From Cajun-Grilled Shrimp to Artichoke and Mushroom Lasagna to Hot and Sticky Apricot-Glazed Chicken to Molasses Chewies with Brown Sugar Glaze, you will find dishes to tempt every palate.
The book is accessible and easy to use, and includes engaging headnotes and clear explanations along with nearly sixty illustrations of ingredients and techniques. You will also find invaluable tips, techniques, and advice from the experts at Bon Appétit. Throughout the book, they share test kitchen secrets in how-tos that demystify and simplify more than three dozen techniques—such as deveining shrimp, cutting corn off the cob, and frosting a layer cake.
Complete with thirty-two pages of gorgeous color photographs to tempt and inspire, The Bon Appétit Cookbook is a must for those who truly love to make and enjoy great food. Whether you're a novice cook or a seasoned expert, it is a book you will turn to again and again—for reference, for ideas, and, of course, for terrific recipes. Here's to making everything you cook a delight to prepare and a joy to eat: Bon Appétit!"
