Roasted peanuts are peanuts that have been cooked, typically without moisture, to enhance their flavor and create a crunchy texture. The process involves the Maillard reaction and lipid oxidation, which develop a richer, deeper taste compared to raw peanuts. They are often seasoned with salt, but can also be dry-roasted (cooked without oil) or oil-roasted, and are available in various flavors like honey-roasted or spicy.