Sous vide is a cooking technique that involves sealing food in a vacuum-sealed bag and cooking it in a water bath at a precisely controlled temperature. This method ensures precise and consistent results, allowing the food to cook evenly and retain its natural flavors and juices. The "🍳🌡️" symbolizes the combination of cooking with heat (represented by the frying pan emoji) and temperature control (represented by the thermometer emoji), which are key elements of the sous vide cooking process.