Under Pressure by Keller is a new cookbook published by American chef Thomas Keller. The book is a collection of various sous vide cooking recipes, some of which you can try for the first time. Sous vide cooking is a relatively new style of cooking in which food is vacuum packed and stored in a container of water containing sodium bicarbonate, a substance that gives the food its exact thickness and flavor. The food is then cooked using precise temperatures and time, usually under pressure. This process produces foods that are more moist, have more flavor, and retain their freshness longer than other cooking methods. Some restaurants have used it successfully to replace beef drippings, making for better-tasting dishes.

Under Pressure by Keller focuses on six different recipes that focus on everything from chicken to fish to cheese. One of the recipes in this book even makes a pudding that doesn't require any sous vide at all! The book describes the pressure cooker method as a way of creating a gourmet food that requires very little skill, but relies on precise timing and good judgment in order to come out delicious.
Under Pressure by Keller provides a clear description of the pressure cooker and the basic equipment needed. It also provides some tips on the best way to use these pieces of equipment. The book does not go into depth about the preparation steps needed to make the meals, but it does describe the general principles of cooking sous vide well enough to allow anyone to make a tasty meal in this way. As this is an advanced course, the prices are a bit on the higher end of the price spectrum, but one that is well worth the price if you want to learn more about this exciting new way of cooking. The money spent will more than pay for itself in no time at all.