A pressure cooker is a kitchen appliance that cooks food quickly by using steam and high pressure. It has a sealed lid that traps steam inside, which raises the temperature above boiling point. This allows food to cook faster than traditional methods, making it perfect for busy cooks who want to save time while preparing meals. Using a pressure cooker can enhance flavors and retain nutrients in food. It's great for making soups, stews, and even desserts. Many modern pressure cookers come with safety features and programmable settings, making them user-friendly for both beginners and experienced chefs alike.