A cooking ingredient is any substance used in the preparation of food. Ingredients can be categorized into various types, including spices, herbs, vegetables, meats, and grains. Each ingredient contributes unique flavors, textures, and nutritional value to a dish, making them essential for cooking. Common cooking ingredients include salt, pepper, olive oil, and garlic. These items are often staples in many kitchens and are used in a wide range of recipes. Understanding how to combine and use different ingredients is key to creating delicious meals.