food science

Sous vide cooking presents an interesting paradox: it's currently de rigueur in the kitchens of the world's most advanced chefs—those helmed by wild prodigies like Keller, Adrià, Dufresne, Achatz—yet, fundamentally, it's one of the simplest and most foolproof methods for cooking just about anything to its exact level of perfect doneness. But now, we non-pros have a new option—the Sous Vide Supreme, the first sous vide setup aimed at home cooks. Do you have to be Thomas Keller to pull off sous vide? I've been cooking with a Sous Vide Supreme for the last month to find out.

Most American children are familiar with marshmallows. These fluffy, chewy treats are sold in bags in the supermarket, often for use in Rice Krispie treats and s'mores. Marshmallow Fluff is a spreadable marshmallow product, often found nestled on shelves beside the peanut butter used for lunchbox confections, adding a sweet, viscous layer to sandwiches and brownies. Around Easter, marshmallow Peeps, with their softer structure and crunchy sugar coating, appear in stores. In many homes around the country, marshmallow-covered sweet potatoes are a staple at the Thanksgiving table.

In 1986, the movie Space Camp was released and freeze-dried ice cream became all the rage around the country. These small packages of impossibly light and dry Neapolitan ice cream were everywhere. For many of us, this unusual, crunchy confection was our first introduction to freeze-dried food. Freeze-dried ingredients were originally popular with the military and NASA, and later gained a foothold with camping outfitters as an extremely lightweight way to carry a variety of foods into the wilderness that could be easily prepared with the simple additions of water and heat.

We are proud to introduce today the first installment of our newest regular feature,Kitchen Alchemy. In it, H. Alexander Talbot and Aki Kamozawa, a husband-and-wife cooking duo and authors of the constantly fascinating Ideas in Food blog, will take us through the myriad intersections of food and science; and as an added bonus, each column will also feature an innovative and, needless to say, delicious recipe for putting said science into action. Enjoy. —Eds.

Pressure cookers are among our favorite culinary gadgets. We like them for things as simple as perfectly steamed beets and as playful as caramelized yogurt. And the days of screeching, squealing pressure cookers, shuddering on your range top and conjuring fears of explosions, are on the wane. Today we have quiet, efficient appliances that are used in both professional and home kitchens. Now you can buy electric pressure cookers, which shorten cooking times, are easy to clean and make a minimal amount of noise.